125344426503 has 16 divisors (see below), whose sum is σ = 178580302560. Its totient is φ = 77925943296.

The previous prime is 125344426499. The next prime is 125344426601. The reversal of 125344426503 is 305624443521.

It is not a de Polignac number, because 125344426503 - 2² = 125344426499 is a prime.

It is a super-2 number, since 2×125344426503² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125344426003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11268450 + ... + 11279567.

It is an arithmetic number, because the mean of its divisors is an integer number (11161268910).

Almost surely, 2^125344426503 is an apocalyptic number.

125344426503 is a deficient number, since it is larger than the sum of its proper divisors (53235876057).

125344426503 is a wasteful number, since it uses less digits than its factorization.

125344426503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22548146.

The product of its (nonzero) digits is 345600, while the sum is 39.

The spelling of 125344426503 in words is "one hundred twenty-five billion, three hundred forty-four million, four hundred twenty-six thousand, five hundred three".