113321211021731 has 2 divisors, whose sum is σ = 113321211021732. Its totient is φ = 113321211021730.

The previous prime is 113321211021727. The next prime is 113321211021737. The reversal of 113321211021731 is 137120112123311.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 113321211021731 - 2² = 113321211021727 is a prime.

It is a super-2 number, since 2×113321211021731² (a number of 29 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 113321211021694 and 113321211021703.

It is not a weakly prime, because it can be changed into another prime (113321211021737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56660605510865 + 56660605510866.

It is an arithmetic number, because the mean of its divisors is an integer number (56660605510866).

Almost surely, 2^{113321211021731} is an apocalyptic number.

113321211021731 is a deficient number, since it is larger than the sum of its proper divisors (1).

113321211021731 is an equidigital number, since it uses as much as digits as its factorization.

113321211021731 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512, while the sum is 29.

The spelling of 113321211021731 in words is "one hundred thirteen trillion, three hundred twenty-one billion, two hundred eleven million, twenty-one thousand, seven hundred thirty-one".