125100512420 has 48 divisors (see below), whose sum is σ = 282945564720. Its totient is φ = 46186722816.

The previous prime is 125100512413. The next prime is 125100512473. The reversal of 125100512420 is 24215001521.

It can be written as a sum of positive squares in 8 ways, for example, as 20843851876 + 104256660544 = 144374^2 + 322888^2 .

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, 5112134 + ... + 5136546.

It is an arithmetic number, because the mean of its divisors is an integer number (5894699265).

Almost surely, 2^125100512420 is an apocalyptic number.

125100512420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125100512420 is an abundant number, since it is smaller than the sum of its proper divisors (157845052300).

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

125100512420 is a wasteful number, since it uses less digits than its factorization.

125100512420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44144 (or 44142 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 23.

Adding to 125100512420 its reverse (24215001521), we get a palindrome (149315513941).

The spelling of 125100512420 in words is "one hundred twenty-five billion, one hundred million, five hundred twelve thousand, four hundred twenty".