20112310431 has 6 divisors (see below), whose sum is σ = 29051115080. Its totient is φ = 13408206948.

The previous prime is 20112310391. The next prime is 20112310469. The reversal of 20112310431 is 13401321102.

20112310431 is a `hidden beast` number, since 2 + 0 + 1 + 1 + 231 + 0 + 431 = 666.

It is not a de Polignac number, because 20112310431 - 2⁷ = 20112310303 is a prime.

It is a super-2 number, since 2×20112310431² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20112310481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1117350571 + ... + 1117350588.

Almost surely, 2^20112310431 is an apocalyptic number.

20112310431 is a deficient number, since it is larger than the sum of its proper divisors (8938804649).

20112310431 is a wasteful number, since it uses less digits than its factorization.

20112310431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2234701165 (or 2234701162 counting only the distinct ones).

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

Adding to 20112310431 its reverse (13401321102), we get a palindrome (33513631533).

The spelling of 20112310431 in words is "twenty billion, one hundred twelve million, three hundred ten thousand, four hundred thirty-one".