125021113055 has 16 divisors (see below), whose sum is σ = 150290562240. Its totient is φ = 99840229632.

The previous prime is 125021113043. The next prime is 125021113069. The reversal of 125021113055 is 550311120521.

It is a cyclic number.

It is not a de Polignac number, because 125021113055 - 2³² = 120726145759 is a prime.

It is a super-2 number, since 2×125021113055² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7295357 + ... + 7312473.

It is an arithmetic number, because the mean of its divisors is an integer number (9393160140).

Almost surely, 2^125021113055 is an apocalyptic number.

125021113055 is a deficient number, since it is larger than the sum of its proper divisors (25269449185).

125021113055 is a wasteful number, since it uses less digits than its factorization.

125021113055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19618.

The product of its (nonzero) digits is 1500, while the sum is 26.

Adding to 125021113055 its reverse (550311120521), we get a palindrome (675332233576).

The spelling of 125021113055 in words is "one hundred twenty-five billion, twenty-one million, one hundred thirteen thousand, fifty-five".