30431123113 has 2 divisors, whose sum is σ = 30431123114. Its totient is φ = 30431123112.

The previous prime is 30431123101. The next prime is 30431123137. The reversal of 30431123113 is 31132113403.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30388508329 + 42614784 = 174323^2 + 6528^2 .

It is a cyclic number.

It is not a de Polignac number, because 30431123113 - 2⁵ = 30431123081 is a prime.

It is not a weakly prime, because it can be changed into another prime (30431123413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15215561556 + 15215561557.

It is an arithmetic number, because the mean of its divisors is an integer number (15215561557).

Almost surely, 2^30431123113 is an apocalyptic number.

It is an amenable number.

30431123113 is a deficient number, since it is larger than the sum of its proper divisors (1).

30431123113 is an equidigital number, since it uses as much as digits as its factorization.

30431123113 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 30431123113 its reverse (31132113403), we get a palindrome (61563236516).

The spelling of 30431123113 in words is "thirty billion, four hundred thirty-one million, one hundred twenty-three thousand, one hundred thirteen".