30312131330013 has 16 divisors (see below), whose sum is σ = 43533319589760. Its totient is φ = 18650101593024.

The previous prime is 30312131329979. The next prime is 30312131330029. The reversal of 30312131330013 is 31003313121303.

It is not a de Polignac number, because 30312131330013 - 2²⁶ = 30312064221149 is a prime.

It is a super-3 number, since 3×30312131330013³ (a number of 41 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30312131330213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73075678 + ... + 73489311.

It is an arithmetic number, because the mean of its divisors is an integer number (2720832474360).

Almost surely, 2^{30312131330013} is an apocalyptic number.

It is an amenable number.

30312131330013 is a deficient number, since it is larger than the sum of its proper divisors (13221188259747).

30312131330013 is a wasteful number, since it uses less digits than its factorization.

30312131330013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146570308.

The product of its (nonzero) digits is 1458, while the sum is 24.

Adding to 30312131330013 its reverse (31003313121303), we get a palindrome (61315444451316).

The spelling of 30312131330013 in words is "thirty trillion, three hundred twelve billion, one hundred thirty-one million, three hundred thirty thousand, thirteen".