20315124541431 has 16 divisors (see below), whose sum is σ = 30406753804000. Its totient is φ = 13403793510144.

The previous prime is 20315124541429. The next prime is 20315124541433. The reversal of 20315124541431 is 13414542151302.

20315124541431 is a `hidden beast` number, since 2 + 0 + 3 + 1 + 51 + 24 + 541 + 43 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (20315124541429) and next prime (20315124541433).

It is not a de Polignac number, because 20315124541431 - 2¹ = 20315124541429 is a prime.

It is a super-2 number, since 2×20315124541431² (a number of 27 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 (20315124541433) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3878409856 + ... + 3878415093.

It is an arithmetic number, because the mean of its divisors is an integer number (1900422112750).

Almost surely, 2^{20315124541431} is an apocalyptic number.

20315124541431 is a deficient number, since it is larger than the sum of its proper divisors (10091629262569).

20315124541431 is an equidigital number, since it uses as much as digits as its factorization.

20315124541431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7756825055 (or 7756825049 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

Adding to 20315124541431 its reverse (13414542151302), we get a palindrome (33729666692733).

The spelling of 20315124541431 in words is "twenty trillion, three hundred fifteen billion, one hundred twenty-four million, five hundred forty-one thousand, four hundred thirty-one".