125134375603 has 4 divisors (see below), whose sum is σ = 125380219680. Its totient is φ = 124888531528.

The previous prime is 125134375589. The next prime is 125134375657. The reversal of 125134375603 is 306573431521.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 125134375603 - 2¹⁷ = 125134244531 is a prime.

It is a super-2 number, since 2×125134375603² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125134375103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 122921275 + ... + 122922292.

It is an arithmetic number, because the mean of its divisors is an integer number (31345054920).

Almost surely, 2^125134375603 is an apocalyptic number.

125134375603 is a deficient number, since it is larger than the sum of its proper divisors (245844077).

125134375603 is an equidigital number, since it uses as much as digits as its factorization.

125134375603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245844076.

The product of its (nonzero) digits is 226800, while the sum is 40.

The spelling of 125134375603 in words is "one hundred twenty-five billion, one hundred thirty-four million, three hundred seventy-five thousand, six hundred three".