30123312013 has 8 divisors (see below), whose sum is σ = 31556505600. Its totient is φ = 28716415728.

The previous prime is 30123311989. The next prime is 30123312017. The reversal of 30123312013 is 31021332103.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 30123312013 - 2²¹ = 30121214861 is a prime.

It is a super-2 number, since 2×30123312013² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30123312017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6571981 + ... + 6576562.

It is an arithmetic number, because the mean of its divisors is an integer number (3944563200).

Almost surely, 2^30123312013 is an apocalyptic number.

It is an amenable number.

30123312013 is a deficient number, since it is larger than the sum of its proper divisors (1433193587).

30123312013 is a wasteful number, since it uses less digits than its factorization.

30123312013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13148651.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 30123312013 its reverse (31021332103), we get a palindrome (61144644116).

The spelling of 30123312013 in words is "thirty billion, one hundred twenty-three million, three hundred twelve thousand, thirteen".