113123221903 has 2 divisors, whose sum is σ = 113123221904. Its totient is φ = 113123221902.

The previous prime is 113123221891. The next prime is 113123221909. The reversal of 113123221903 is 309122321311.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 113123221903 - 2⁹ = 113123221391 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (113123221909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56561610951 + 56561610952.

It is an arithmetic number, because the mean of its divisors is an integer number (56561610952).

Almost surely, 2^113123221903 is an apocalyptic number.

113123221903 is a deficient number, since it is larger than the sum of its proper divisors (1).

113123221903 is an equidigital number, since it uses as much as digits as its factorization.

113123221903 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 28.

The spelling of 113123221903 in words is "one hundred thirteen billion, one hundred twenty-three million, two hundred twenty-one thousand, nine hundred three".