30431023113 has 4 divisors (see below), whose sum is σ = 40574697488. Its totient is φ = 20287348740.

The previous prime is 30431023109. The next prime is 30431023141. The reversal of 30431023113 is 31132013403.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 30431023113 - 2² = 30431023109 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30431023113.

It is not an unprimeable number, because it can be changed into a prime (30431023313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5071837183 + ... + 5071837188.

It is an arithmetic number, because the mean of its divisors is an integer number (10143674372).

Almost surely, 2^30431023113 is an apocalyptic number.

It is an amenable number.

30431023113 is a deficient number, since it is larger than the sum of its proper divisors (10143674375).

30431023113 is a wasteful number, since it uses less digits than its factorization.

30431023113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10143674374.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 30431023113 its reverse (31132013403), we get a palindrome (61563036516).

The spelling of 30431023113 in words is "thirty billion, four hundred thirty-one million, twenty-three thousand, one hundred thirteen".