2497956100121 has 2 divisors, whose sum is σ = 2497956100122. Its totient is φ = 2497956100120.

The previous prime is 2497956100067. The next prime is 2497956100151. The reversal of 2497956100121 is 1210016597942.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1946055690121 + 551900410000 = 1395011^2 + 742900^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2497956100121 is a prime.

It is not a weakly prime, because it can be changed into another prime (2497956100151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1248978050060 + 1248978050061.

It is an arithmetic number, because the mean of its divisors is an integer number (1248978050061).

Almost surely, 2^{2497956100121} is an apocalyptic number.

It is an amenable number.

2497956100121 is a deficient number, since it is larger than the sum of its proper divisors (1).

2497956100121 is an equidigital number, since it uses as much as digits as its factorization.

2497956100121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 272160, while the sum is 47.

The spelling of 2497956100121 in words is "two trillion, four hundred ninety-seven billion, nine hundred fifty-six million, one hundred thousand, one hundred twenty-one".