202031113122 has 12 divisors (see below), whose sum is σ = 437734078470. Its totient is φ = 67343704368.

The previous prime is 202031113079. The next prime is 202031113127. The reversal of 202031113122 is 221311130202.

202031113122 is a `hidden beast` number, since 20 + 20 + 311 + 1 + 312 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 176962407561 + 25068705561 = 420669^2 + 158331^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 11223950729 = 202031113122 / (2 + 0 + 2 + 0 + 3 + 1 + 1 + 1 + 3 + 1 + 2 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 202031113095 and 202031113104.

It is not an unprimeable number, because it can be changed into a prime (202031113127) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5611975347 + ... + 5611975382.

Almost surely, 2^202031113122 is an apocalyptic number.

202031113122 is an abundant number, since it is smaller than the sum of its proper divisors (235702965348).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

202031113122 is a wasteful number, since it uses less digits than its factorization.

202031113122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11223950737 (or 11223950734 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 202031113122 its reverse (221311130202), we get a palindrome (423342243324).

The spelling of 202031113122 in words is "two hundred two billion, thirty-one million, one hundred thirteen thousand, one hundred twenty-two".