125370036421 has 4 divisors (see below), whose sum is σ = 143280041632. Its totient is φ = 107460031212.

The previous prime is 125370036419. The next prime is 125370036457. The reversal of 125370036421 is 124630073521.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 125370036421 - 2¹ = 125370036419 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125370036481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8955002595 + ... + 8955002608.

It is an arithmetic number, because the mean of its divisors is an integer number (35820010408).

Almost surely, 2^125370036421 is an apocalyptic number.

It is an amenable number.

125370036421 is a deficient number, since it is larger than the sum of its proper divisors (17910005211).

125370036421 is an equidigital number, since it uses as much as digits as its factorization.

125370036421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17910005210.

The product of its (nonzero) digits is 30240, while the sum is 34.

The spelling of 125370036421 in words is "one hundred twenty-five billion, three hundred seventy million, thirty-six thousand, four hundred twenty-one".