20024242312431 has 64 divisors (see below), whose sum is σ = 31545925632000. Its totient is φ = 11056274496000.

The previous prime is 20024242312427. The next prime is 20024242312463. The reversal of 20024242312431 is 13421324242002.

It is not a de Polignac number, because 20024242312431 - 2² = 20024242312427 is a prime.

It is a super-2 number, since 2×20024242312431² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20024242332431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1614721831 + ... + 1614734231.

It is an arithmetic number, because the mean of its divisors is an integer number (492905088000).

Almost surely, 2^{20024242312431} is an apocalyptic number.

20024242312431 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

20024242312431 is a deficient number, since it is larger than the sum of its proper divisors (11521683319569).

20024242312431 is a wasteful number, since it uses less digits than its factorization.

20024242312431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16060.

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 20024242312431 its reverse (13421324242002), we get a palindrome (33445566554433).

The spelling of 20024242312431 in words is "twenty trillion, twenty-four billion, two hundred forty-two million, three hundred twelve thousand, four hundred thirty-one".