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102010301031220 = 22514071362484191
BaseRepresentation
bin10111001100011100011111…
…110000011010001100110100
3111101012002102021100222120121
4113030130133300122030310
5101332314044030444340
61000542515122341324
730326000233025311
oct2714343760321464
9441162367328517
10102010301031220
112a55a3645901aa
12b5363434ba844
1344bc6b7866a5a
141b294797c5d08
15bbd7c6cbe94a
hex5cc71fc1a334

102010301031220 has 24 divisors (see below), whose sum is σ = 214236857092608. Its totient is φ = 40801220426400.

The previous prime is 102010301031169. The next prime is 102010301031271. The reversal of 102010301031220 is 22130103010201.

It is an interprime number because it is at equal distance from previous prime (102010301031169) and next prime (102010301031271).

It is a super-2 number, since 2×1020103010312202 (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 102010301031194 and 102010301031203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 180960676 + ... + 181523515.

It is an arithmetic number, because the mean of its divisors is an integer number (8926535712192).

Almost surely, 2102010301031220 is an apocalyptic number.

102010301031220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102010301031220 is an abundant number, since it is smaller than the sum of its proper divisors (112226556061388).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102010301031220 is a wasteful number, since it uses less digits than its factorization.

102010301031220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 362498271 (or 362498269 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 102010301031220 its reverse (22130103010201), we get a palindrome (124140404041421).

The spelling of 102010301031220 in words is "one hundred two trillion, ten billion, three hundred one million, thirty-one thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 14071 28142 56284 70355 140710 281420 362484191 724968382 1449936764 1812420955 3624841910 7249683820 5100515051561 10201030103122 20402060206244 25502575257805 51005150515610 102010301031220