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103112212131213 = 3149242413951583
BaseRepresentation
bin10111011100011110101110…
…110001101010110110001101
3111112002102122100111200122120
4113130132232301222312031
5102003342302301144323
61003145032445403153
730501416511603045
oct2734365661526615
9445072570450576
10103112212131213
112a94470968897a
12b693a072694b9
13456c59456100c
141b6692ca06725
15bdc2ba4225e3
hex5dc7aec6ad8d

103112212131213 has 16 divisors (see below), whose sum is σ = 138406370265600. Its totient is φ = 68279769152064.

The previous prime is 103112212131133. The next prime is 103112212131277. The reversal of 103112212131213 is 312131212211301.

It is not a de Polignac number, because 103112212131213 - 228 = 103111943695757 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103112212131283) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 107882820 + ... + 108834402.

It is an arithmetic number, because the mean of its divisors is an integer number (8650398141600).

Almost surely, 2103112212131213 is an apocalyptic number.

It is an amenable number.

103112212131213 is a deficient number, since it is larger than the sum of its proper divisors (35294158134387).

103112212131213 is a wasteful number, since it uses less digits than its factorization.

103112212131213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1194148.

The product of its (nonzero) digits is 432, while the sum is 24.

Adding to 103112212131213 its reverse (312131212211301), we get a palindrome (415243424342514).

The spelling of 103112212131213 in words is "one hundred three trillion, one hundred twelve billion, two hundred twelve million, one hundred thirty-one thousand, two hundred thirteen".

Divisors: 1 3 149 447 242413 727239 951583 2854749 36119537 108358611 141785867 425357601 230676089779 692028269337 34370737377071 103112212131213