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231413311122012 = 22327730578315231
BaseRepresentation
bin110100100111100000011100…
…001101001010101001011100
31010100100220012112112200011100
4310213200130031022221130
5220312433430121401022
62140101450230553100
766513026402233005
oct6447403415125134
91110326175480140
10231413311122012
116780a91a217678
1221b55549808790
139c18248c99c46
14412066d3b21ac
151bb48d08d41ac
hexd2781c34aa5c

231413311122012 has 36 divisors (see below), whose sum is σ = 584962252370496. Its totient is φ = 77137661314560.

The previous prime is 231413311121977. The next prime is 231413311122013. The reversal of 231413311122012 is 210221113314132.

231413311122012 is a `hidden beast` number, since 2 + 3 + 1 + 413 + 3 + 1 + 11 + 220 + 12 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231413311122013) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23672437 + ... + 31987667.

It is an arithmetic number, because the mean of its divisors is an integer number (16248951454736).

Almost surely, 2231413311122012 is an apocalyptic number.

It is an amenable number.

231413311122012 is an abundant number, since it is smaller than the sum of its proper divisors (353548941248484).

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

231413311122012 is a wasteful number, since it uses less digits than its factorization.

231413311122012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9088298 (or 9088293 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

Adding to 231413311122012 its reverse (210221113314132), we get a palindrome (441634424436144).

The spelling of 231413311122012 in words is "two hundred thirty-one trillion, four hundred thirteen billion, three hundred eleven million, one hundred twenty-two thousand, twelve".

Divisors: 1 2 3 4 6 9 12 18 36 773057 1546114 2319171 3092228 4638342 6957513 8315231 9276684 13915026 16630462 24945693 27830052 33260924 49891386 74837079 99782772 149674158 299348316 6428147531167 12856295062334 19284442593501 25712590124668 38568885187002 57853327780503 77137770374004 115706655561006 231413311122012