20514152431 has 2 divisors, whose sum is σ = 20514152432. Its totient is φ = 20514152430.

The previous prime is 20514152383. The next prime is 20514152471. The reversal of 20514152431 is 13425141502.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20514152431 - 2⁷ = 20514152303 is a prime.

It is a super-2 number, since 2×20514152431² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20514152431.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20514152471) 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 as a sum of consecutive naturals, namely, 10257076215 + 10257076216.

It is an arithmetic number, because the mean of its divisors is an integer number (10257076216).

Almost surely, 2^20514152431 is an apocalyptic number.

20514152431 is a deficient number, since it is larger than the sum of its proper divisors (1).

20514152431 is an equidigital number, since it uses as much as digits as its factorization.

20514152431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4800, while the sum is 28.

Adding to 20514152431 its reverse (13425141502), we get a palindrome (33939293933).

The spelling of 20514152431 in words is "twenty billion, five hundred fourteen million, one hundred fifty-two thousand, four hundred thirty-one".