20301213431 has 2 divisors, whose sum is σ = 20301213432. Its totient is φ = 20301213430.

The previous prime is 20301213421. The next prime is 20301213433. The reversal of 20301213431 is 13431210302.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20301213431 is a prime.

It is a super-2 number, since 2×20301213431² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

Together with 20301213433, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20301213433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10150606715 + 10150606716.

It is an arithmetic number, because the mean of its divisors is an integer number (10150606716).

Almost surely, 2^20301213431 is an apocalyptic number.

20301213431 is a deficient number, since it is larger than the sum of its proper divisors (1).

20301213431 is an equidigital number, since it uses as much as digits as its factorization.

20301213431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 20301213431 its reverse (13431210302), we get a palindrome (33732423733).

The spelling of 20301213431 in words is "twenty billion, three hundred one million, two hundred thirteen thousand, four hundred thirty-one".