115331254240021 has 2 divisors, whose sum is σ = 115331254240022. Its totient is φ = 115331254240020.

The previous prime is 115331254239973. The next prime is 115331254240073. The reversal of 115331254240021 is 120042452133511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 110129597890225 + 5201656349796 = 10494265^2 + 2280714^2 .

It is a cyclic number.

It is not a de Polignac number, because 115331254240021 - 2³⁵ = 115296894501653 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (115331254340021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57665627120010 + 57665627120011.

It is an arithmetic number, because the mean of its divisors is an integer number (57665627120011).

Almost surely, 2^{115331254240021} is an apocalyptic number.

It is an amenable number.

115331254240021 is a deficient number, since it is larger than the sum of its proper divisors (1).

115331254240021 is an equidigital number, since it uses as much as digits as its factorization.

115331254240021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28800, while the sum is 34.

The spelling of 115331254240021 in words is "one hundred fifteen trillion, three hundred thirty-one billion, two hundred fifty-four million, two hundred forty thousand, twenty-one".