125111615343 has 32 divisors (see below), whose sum is σ = 198181105920. Its totient is φ = 69206058240.

The previous prime is 125111615303. The next prime is 125111615351. The reversal of 125111615343 is 343516111521.

It is a happy number.

It is not a de Polignac number, because 125111615343 - 2¹⁰ = 125111614319 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125111615303) 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, 1600221 + ... + 1676582.

It is an arithmetic number, because the mean of its divisors is an integer number (6193159560).

Almost surely, 2^125111615343 is an apocalyptic number.

125111615343 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

125111615343 is a deficient number, since it is larger than the sum of its proper divisors (73069490577).

125111615343 is a wasteful number, since it uses less digits than its factorization.

125111615343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3276919.

The product of its digits is 10800, while the sum is 33.

Adding to 125111615343 its reverse (343516111521), we get a palindrome (468627726864).

The spelling of 125111615343 in words is "one hundred twenty-five billion, one hundred eleven million, six hundred fifteen thousand, three hundred forty-three".