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102312030101 = 267738218913
BaseRepresentation
bin101111101001001000…
…1011010111110010101
3100210002022010122022012
41133102101122332111
53134013334430401
6115000153514005
710251246623021
oct1372221327625
9323068118265
10102312030101
113a432523586
12179b4112905
1398568074a8
144d48141381
1529dc1d58bb
hex17d245af95

102312030101 has 4 divisors (see below), whose sum is σ = 102350251692. Its totient is φ = 102273808512.

The previous prime is 102312030083. The next prime is 102312030127. The reversal of 102312030101 is 101030213201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 101030213201 = 311324855991.

It can be written as a sum of positive squares in 2 ways, for example, as 34141431076 + 68170599025 = 184774^2 + 261095^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-102312030101 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102312030701) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19106780 + ... + 19112133.

It is an arithmetic number, because the mean of its divisors is an integer number (25587562923).

Almost surely, 2102312030101 is an apocalyptic number.

It is an amenable number.

102312030101 is a deficient number, since it is larger than the sum of its proper divisors (38221591).

102312030101 is an equidigital number, since it uses as much as digits as its factorization.

102312030101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38221590.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 102312030101 its reverse (101030213201), we get a palindrome (203342243302).

The spelling of 102312030101 in words is "one hundred two billion, three hundred twelve million, thirty thousand, one hundred one".

Divisors: 1 2677 38218913 102312030101