30431422013 has 2 divisors, whose sum is σ = 30431422014. Its totient is φ = 30431422012.

The previous prime is 30431422009. The next prime is 30431422057. The reversal of 30431422013 is 31022413403.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29245446169 + 1185975844 = 171013^2 + 34438^2 .

It is a cyclic number.

It is not a de Polignac number, because 30431422013 - 2² = 30431422009 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 30431422013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30431422093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15215711006 + 15215711007.

It is an arithmetic number, because the mean of its divisors is an integer number (15215711007).

Almost surely, 2^30431422013 is an apocalyptic number.

It is an amenable number.

30431422013 is a deficient number, since it is larger than the sum of its proper divisors (1).

30431422013 is an equidigital number, since it uses as much as digits as its factorization.

30431422013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 30431422013 its reverse (31022413403), we get a palindrome (61453835416).

The spelling of 30431422013 in words is "thirty billion, four hundred thirty-one million, four hundred twenty-two thousand, thirteen".