312131111180653 has 2 divisors, whose sum is σ = 312131111180654. Its totient is φ = 312131111180652.

The previous prime is 312131111180633. The next prime is 312131111180711. The reversal of 312131111180653 is 356081111131213.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 310915741636809 + 1215369543844 = 17632803^2 + 1102438^2 .

It is a cyclic number.

It is not a de Polignac number, because 312131111180653 - 2⁴⁵ = 276946739091821 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (312131111180633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156065555590326 + 156065555590327.

It is an arithmetic number, because the mean of its divisors is an integer number (156065555590327).

Almost surely, 2^{312131111180653} is an apocalyptic number.

It is an amenable number.

312131111180653 is a deficient number, since it is larger than the sum of its proper divisors (1).

312131111180653 is an equidigital number, since it uses as much as digits as its factorization.

312131111180653 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 37.

The spelling of 312131111180653 in words is "three hundred twelve trillion, one hundred thirty-one billion, one hundred eleven million, one hundred eighty thousand, six hundred fifty-three".