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231130310310012 = 22361315751790041
BaseRepresentation
bin110100100011011000111000…
…000010101111100001111100
31010022100211201201120212110210
4310203120320002233201330
5220243314333414410022
62135323444305232420
766453420361100241
oct6443307002574174
91108324651525423
10231130310310012
11677108a5684983
1221b0a729332710
139bc7657c38c79
144110aa3bbb5c8
151bac36a7dba0c
hexd236380af87c

231130310310012 has 24 divisors (see below), whose sum is σ = 548145107512912. Its totient is φ = 75780429609600.

The previous prime is 231130310310001. The next prime is 231130310310059. The reversal of 231130310310012 is 210013013031132.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 157875894289 + ... + 157875895752.

Almost surely, 2231130310310012 is an apocalyptic number.

It is an amenable number.

231130310310012 is an abundant number, since it is smaller than the sum of its proper divisors (317014797202900).

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

231130310310012 is a wasteful number, since it uses less digits than its factorization.

231130310310012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315751790109 (or 315751790107 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 231130310310012 its reverse (210013013031132), we get a palindrome (441143323341144).

The spelling of 231130310310012 in words is "two hundred thirty-one trillion, one hundred thirty billion, three hundred ten million, three hundred ten thousand, twelve".

Divisors: 1 2 3 4 6 12 61 122 183 244 366 732 315751790041 631503580082 947255370123 1263007160164 1894510740246 3789021480492 19260859192501 38521718385002 57782577577503 77043436770004 115565155155006 231130310310012