125411115021 has 32 divisors (see below), whose sum is σ = 181908478080. Its totient is φ = 76557950976.

The previous prime is 125411115017. The next prime is 125411115083. The reversal of 125411115021 is 120511114521.

It is not a de Polignac number, because 125411115021 - 2² = 125411115017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 125411114982 and 125411115000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125411115001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 77035 + ... + 506711.

It is an arithmetic number, because the mean of its divisors is an integer number (5684639940).

Almost surely, 2^125411115021 is an apocalyptic number.

It is an amenable number.

125411115021 is a deficient number, since it is larger than the sum of its proper divisors (56497363059).

125411115021 is a wasteful number, since it uses less digits than its factorization.

125411115021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 429853.

The product of its (nonzero) digits is 400, while the sum is 24.

Adding to 125411115021 its reverse (120511114521), we get a palindrome (245922229542).

The spelling of 125411115021 in words is "one hundred twenty-five billion, four hundred eleven million, one hundred fifteen thousand, twenty-one".