125023611643 has 16 divisors (see below), whose sum is σ = 143567944704. Its totient is φ = 106650593280.

The previous prime is 125023611637. The next prime is 125023611697. The reversal of 125023611643 is 346116320521.

It is not a de Polignac number, because 125023611643 - 2¹³ = 125023603451 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 125023611599 and 125023611608.

It is not an unprimeable number, because it can be changed into a prime (125023611143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4637563 + ... + 4664443.

It is an arithmetic number, because the mean of its divisors is an integer number (8972996544).

Almost surely, 2^125023611643 is an apocalyptic number.

125023611643 is a deficient number, since it is larger than the sum of its proper divisors (18544333061).

125023611643 is a wasteful number, since it uses less digits than its factorization.

125023611643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30042.

The product of its (nonzero) digits is 25920, while the sum is 34.

The spelling of 125023611643 in words is "one hundred twenty-five billion, twenty-three million, six hundred eleven thousand, six hundred forty-three".