125009959331 has 2 divisors, whose sum is σ = 125009959332. Its totient is φ = 125009959330.

The previous prime is 125009959273. The next prime is 125009959429. The reversal of 125009959331 is 133959900521.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125009959331 is a prime.

It is a super-2 number, since 2×125009959331² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (125009955331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62504979665 + 62504979666.

It is an arithmetic number, because the mean of its divisors is an integer number (62504979666).

Almost surely, 2^125009959331 is an apocalyptic number.

125009959331 is a deficient number, since it is larger than the sum of its proper divisors (1).

125009959331 is an equidigital number, since it uses as much as digits as its factorization.

125009959331 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 328050, while the sum is 47.

The spelling of 125009959331 in words is "one hundred twenty-five billion, nine million, nine hundred fifty-nine thousand, three hundred thirty-one".