103720923779 has 4 divisors (see below), whose sum is σ = 113150098680. Its totient is φ = 94291748880.

The previous prime is 103720923769. The next prime is 103720923851. The reversal of 103720923779 is 977329027301.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-103720923779 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (103720923769) 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, 4714587434 + ... + 4714587455.

It is an arithmetic number, because the mean of its divisors is an integer number (28287524670).

Almost surely, 2^103720923779 is an apocalyptic number.

103720923779 is a deficient number, since it is larger than the sum of its proper divisors (9429174901).

103720923779 is an equidigital number, since it uses as much as digits as its factorization.

103720923779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9429174900.

The product of its (nonzero) digits is 1000188, while the sum is 50.

The spelling of 103720923779 in words is "one hundred three billion, seven hundred twenty million, nine hundred twenty-three thousand, seven hundred seventy-nine".