125321803685 has 32 divisors (see below), whose sum is σ = 175129661952. Its totient is φ = 85248230400.

The previous prime is 125321803669. The next prime is 125321803697. The reversal of 125321803685 is 586308123521.

It is not a de Polignac number, because 125321803685 - 2⁴ = 125321803669 is a prime.

It is a super-3 number, since 3×125321803685³ (a number of 34 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1154591 + ... + 1258460.

It is an arithmetic number, because the mean of its divisors is an integer number (5472801936).

Almost surely, 2^125321803685 is an apocalyptic number.

It is an amenable number.

125321803685 is a deficient number, since it is larger than the sum of its proper divisors (49807858267).

125321803685 is a wasteful number, since it uses less digits than its factorization.

125321803685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2413133.

The product of its (nonzero) digits is 345600, while the sum is 44.

The spelling of 125321803685 in words is "one hundred twenty-five billion, three hundred twenty-one million, eight hundred three thousand, six hundred eighty-five".