125629803123 has 64 divisors (see below), whose sum is σ = 197374371840. Its totient is φ = 70226956800.

The previous prime is 125629803107. The next prime is 125629803151. The reversal of 125629803123 is 321308926521.

It is not a de Polignac number, because 125629803123 - 2⁴ = 125629803107 is a prime.

It is not an unprimeable number, because it can be changed into a prime (125629803023) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 10950036 + ... + 10961502.

It is an arithmetic number, because the mean of its divisors is an integer number (3083974560).

Almost surely, 2^125629803123 is an apocalyptic number.

125629803123 is a deficient number, since it is larger than the sum of its proper divisors (71744568717).

125629803123 is a wasteful number, since it uses less digits than its factorization.

125629803123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11888.

The product of its (nonzero) digits is 155520, while the sum is 42.

The spelling of 125629803123 in words is "one hundred twenty-five billion, six hundred twenty-nine million, eight hundred three thousand, one hundred twenty-three".