125012311040 has 44 divisors (see below), whose sum is σ = 299883059976. Its totient is φ = 50004922368.

The previous prime is 125012311031. The next prime is 125012311087. The reversal of 125012311040 is 40113210521.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12203114 + ... + 12213353.

Almost surely, 2^125012311040 is an apocalyptic number.

125012311040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125012311040 is an abundant number, since it is smaller than the sum of its proper divisors (174870748936).

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

125012311040 is an equidigital number, since it uses as much as digits as its factorization.

125012311040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24416492 (or 24416474 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 20.

Adding to 125012311040 its reverse (40113210521), we get a palindrome (165125521561).

The spelling of 125012311040 in words is "one hundred twenty-five billion, twelve million, three hundred eleven thousand, forty".