2315026112981 has 2 divisors, whose sum is σ = 2315026112982. Its totient is φ = 2315026112980.

The previous prime is 2315026112969. The next prime is 2315026113013. The reversal of 2315026112981 is 1892116205132.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2309260140625 + 5765972356 = 1519625^2 + 75934^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2315026112981 is a prime.

It is a super-2 number, since 2×2315026112981² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2315026112281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1157513056490 + 1157513056491.

It is an arithmetic number, because the mean of its divisors is an integer number (1157513056491).

Almost surely, 2^{2315026112981} is an apocalyptic number.

It is an amenable number.

2315026112981 is a deficient number, since it is larger than the sum of its proper divisors (1).

2315026112981 is an equidigital number, since it uses as much as digits as its factorization.

2315026112981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51840, while the sum is 41.

The spelling of 2315026112981 in words is "two trillion, three hundred fifteen billion, twenty-six million, one hundred twelve thousand, nine hundred eighty-one".