125310103999 has 4 divisors (see below), whose sum is σ = 126550798200. Its totient is φ = 124069409800.

The previous prime is 125310103981. The next prime is 125310104011. The reversal of 125310103999 is 999301013521.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 999301013521 = 8849 ⋅112928129.

It is a cyclic number.

It is not a de Polignac number, because 125310103999 - 2⁷ = 125310103871 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125310103099) 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, 620346949 + ... + 620347150.

It is an arithmetic number, because the mean of its divisors is an integer number (31637699550).

Almost surely, 2^125310103999 is an apocalyptic number.

125310103999 is a deficient number, since it is larger than the sum of its proper divisors (1240694201).

125310103999 is a wasteful number, since it uses less digits than its factorization.

125310103999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1240694200.

The product of its (nonzero) digits is 65610, while the sum is 43.

The spelling of 125310103999 in words is "one hundred twenty-five billion, three hundred ten million, one hundred three thousand, nine hundred ninety-nine".