203113100122 has 8 divisors (see below), whose sum is σ = 304749147636. Its totient is φ = 101530050912.

The previous prime is 203113100117. The next prime is 203113100143. The reversal of 203113100122 is 221001311302.

It can be written as a sum of positive squares in 2 ways, for example, as 195159849361 + 7953250761 = 441769^2 + 89181^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 203113100096 and 203113100105.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13239993 + ... + 13255324.

Almost surely, 2^203113100122 is an apocalyptic number.

203113100122 is a deficient number, since it is larger than the sum of its proper divisors (101636047514).

203113100122 is a wasteful number, since it uses less digits than its factorization.

203113100122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26499152.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 203113100122 its reverse (221001311302), we get a palindrome (424114411424).

The spelling of 203113100122 in words is "two hundred three billion, one hundred thirteen million, one hundred thousand, one hundred twenty-two".