125103386879 has 4 divisors (see below), whose sum is σ = 128154689040. Its totient is φ = 122052084720.

The previous prime is 125103386857. The next prime is 125103386899. The reversal of 125103386879 is 978683301521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 978683301521 = 457 ⋅2141538953.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125103386879 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 125103386879.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125103386899) 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, 1525651019 + ... + 1525651100.

It is an arithmetic number, because the mean of its divisors is an integer number (32038672260).

Almost surely, 2^125103386879 is an apocalyptic number.

125103386879 is a deficient number, since it is larger than the sum of its proper divisors (3051302161).

125103386879 is an equidigital number, since it uses as much as digits as its factorization.

125103386879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3051302160.

The product of its (nonzero) digits is 2177280, while the sum is 53.

The spelling of 125103386879 in words is "one hundred twenty-five billion, one hundred three million, three hundred eighty-six thousand, eight hundred seventy-nine".