20031322113 has 40 divisors (see below), whose sum is σ = 32689236096. Its totient is φ = 12123237600.

The previous prime is 20031322099. The next prime is 20031322133. The reversal of 20031322113 is 31122313002.

20031322113 is a `hidden beast` number, since 200 + 31 + 322 + 113 = 666.

It is not a de Polignac number, because 20031322113 - 2⁹ = 20031321601 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20031322133) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 637768 + ... + 668438.

Almost surely, 2^20031322113 is an apocalyptic number.

It is an amenable number.

20031322113 is a deficient number, since it is larger than the sum of its proper divisors (12657913983).

20031322113 is a wasteful number, since it uses less digits than its factorization.

20031322113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31427 (or 31418 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 20031322113 its reverse (31122313002), we get a palindrome (51153635115).

It can be divided in two parts, 200 and 31322113, that added together give a palindrome (31322313).

The spelling of 20031322113 in words is "twenty billion, thirty-one million, three hundred twenty-two thousand, one hundred thirteen".