125361131620 has 24 divisors (see below), whose sum is σ = 263265106104. Its totient is φ = 50143170816.

The previous prime is 125361131569. The next prime is 125361131639. The reversal of 125361131620 is 26131163521.

It can be written as a sum of positive squares in 4 ways, for example, as 44445915684 + 80915215936 = 210822^2 + 284456^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1310872 + ... + 1403248.

It is an arithmetic number, because the mean of its divisors is an integer number (10969379421).

Almost surely, 2^125361131620 is an apocalyptic number.

125361131620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125361131620 is an abundant number, since it is smaller than the sum of its proper divisors (137903974484).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

125361131620 is a wasteful number, since it uses less digits than its factorization.

125361131620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160239 (or 160237 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 31.

The spelling of 125361131620 in words is "one hundred twenty-five billion, three hundred sixty-one million, one hundred thirty-one thousand, six hundred twenty".