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31253007912107 is a prime number
BaseRepresentation
bin1110001101100101010000…
…11011110100110010101011
311002122202110212010210210112
413012302220123310302223
513044022130011141412
6150245233355204535
76403645446043112
oct706625033646253
9132582425123715
1031253007912107
119a5a365225073
12360906114674b
1314591b89bb607
147a09218aac79
15392e68462722
hex1c6ca86f4cab

31253007912107 has 2 divisors, whose sum is σ = 31253007912108. Its totient is φ = 31253007912106.

The previous prime is 31253007911999. The next prime is 31253007912109. The reversal of 31253007912107 is 70121970035213.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 31253007912107 - 242 = 26854961401003 is a prime.

Together with 31253007912109, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (31253007912109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15626503956053 + 15626503956054.

It is an arithmetic number, because the mean of its divisors is an integer number (15626503956054).

Almost surely, 231253007912107 is an apocalyptic number.

31253007912107 is a deficient number, since it is larger than the sum of its proper divisors (1).

31253007912107 is an equidigital number, since it uses as much as digits as its factorization.

31253007912107 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 79380, while the sum is 41.

The spelling of 31253007912107 in words is "thirty-one trillion, two hundred fifty-three billion, seven million, nine hundred twelve thousand, one hundred seven".