20242315431 has 12 divisors (see below), whose sum is σ = 31488046408. Its totient is φ = 12456809424.

The previous prime is 20242315421. The next prime is 20242315447. The reversal of 20242315431 is 13451324202.

20242315431 is a `hidden beast` number, since 202 + 4 + 23 + 1 + 5 + 431 = 666.

It is not a de Polignac number, because 20242315431 - 2¹⁸ = 20242053287 is a prime.

It is a super-2 number, since 2×20242315431² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20242315395 and 20242315404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20242315421) 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 11 ways as a sum of consecutive naturals, for example, 86505505 + ... + 86505738.

Almost surely, 2^20242315431 is an apocalyptic number.

20242315431 is a deficient number, since it is larger than the sum of its proper divisors (11245730977).

20242315431 is a wasteful number, since it uses less digits than its factorization.

20242315431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173011262 (or 173011259 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

Adding to 20242315431 its reverse (13451324202), we get a palindrome (33693639633).

The spelling of 20242315431 in words is "twenty billion, two hundred forty-two million, three hundred fifteen thousand, four hundred thirty-one".