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2131023122030 = 251147412190159
BaseRepresentation
bin11111000000101010111…
…000000100111001101110
321112201112122222002011102
4133000222320010321232
5234403313404401110
64310551205123102
7306650511444335
oct37005270047156
97481478862142
102131023122030
11751841aa6710
122a500b3b9492
13125c543b054a
14751dbba4d1c
153a675a8d5a5
hex1f02ae04e6e

2131023122030 has 32 divisors (see below), whose sum is σ = 4273587578880. Its totient is φ = 758429890720.

The previous prime is 2131023122009. The next prime is 2131023122093. The reversal of 2131023122030 is 302213201312.

It is a junction number, because it is equal to n+sod(n) for n = 2131023121993 and 2131023122011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 206089910 + ... + 206100249.

It is an arithmetic number, because the mean of its divisors is an integer number (133549611840).

Almost surely, 22131023122030 is an apocalyptic number.

2131023122030 is an abundant number, since it is smaller than the sum of its proper divisors (2142564456850).

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

2131023122030 is a wasteful number, since it uses less digits than its factorization.

2131023122030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 412190224.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 2131023122030 its reverse (302213201312), we get a palindrome (2433236323342).

The spelling of 2131023122030 in words is "two trillion, one hundred thirty-one billion, twenty-three million, one hundred twenty-two thousand, thirty".

Divisors: 1 2 5 10 11 22 47 55 94 110 235 470 517 1034 2585 5170 412190159 824380318 2060950795 4121901590 4534091749 9068183498 19372937473 22670458745 38745874946 45340917490 96864687365 193729374730 213102312203 426204624406 1065511561015 2131023122030