125012640213 has 48 divisors (see below), whose sum is σ = 188950544640. Its totient is φ = 79544304000.

The previous prime is 125012640149. The next prime is 125012640239. The reversal of 125012640213 is 312046210521.

125012640213 is a `hidden beast` number, since 1 + 2 + 5 + 0 + 1 + 2 + 640 + 2 + 13 = 666.

It is not a de Polignac number, because 125012640213 - 2⁶ = 125012640149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125012640253) 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 in 47 ways as a sum of consecutive naturals, for example, 18212020 + ... + 18218882.

It is an arithmetic number, because the mean of its divisors is an integer number (3936469680).

Almost surely, 2^125012640213 is an apocalyptic number.

It is an amenable number.

125012640213 is a deficient number, since it is larger than the sum of its proper divisors (63937904427).

125012640213 is a wasteful number, since it uses less digits than its factorization.

125012640213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7690 (or 7687 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

Adding to 125012640213 its reverse (312046210521), we get a palindrome (437058850734).

The spelling of 125012640213 in words is "one hundred twenty-five billion, twelve million, six hundred forty thousand, two hundred thirteen".