125211044155 has 16 divisors (see below), whose sum is σ = 151103844864. Its totient is φ = 99602219520.

The previous prime is 125211044137. The next prime is 125211044213. The reversal of 125211044155 is 551440112521.

It is not a de Polignac number, because 125211044155 - 2²⁹ = 124674173243 is a prime.

It is a Duffinian 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, 2335207 + ... + 2388223.

It is an arithmetic number, because the mean of its divisors is an integer number (9443990304).

Almost surely, 2^125211044155 is an apocalyptic number.

125211044155 is a deficient number, since it is larger than the sum of its proper divisors (25892800709).

125211044155 is a wasteful number, since it uses less digits than its factorization.

125211044155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55686.

The product of its (nonzero) digits is 8000, while the sum is 31.

Adding to 125211044155 its reverse (551440112521), we get a palindrome (676651156676).

The spelling of 125211044155 in words is "one hundred twenty-five billion, two hundred eleven million, forty-four thousand, one hundred fifty-five".