30131312213 has 16 divisors (see below), whose sum is σ = 31642564800. Its totient is φ = 28666068480.

The previous prime is 30131312207. The next prime is 30131312221. The reversal of 30131312213 is 31221313103.

It is a cyclic number.

It is not a de Polignac number, because 30131312213 - 2⁸ = 30131311957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30131312413) 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, 222053 + ... + 331013.

It is an arithmetic number, because the mean of its divisors is an integer number (1977660300).

Almost surely, 2^30131312213 is an apocalyptic number.

It is an amenable number.

30131312213 is a deficient number, since it is larger than the sum of its proper divisors (1511252587).

30131312213 is a wasteful number, since it uses less digits than its factorization.

30131312213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109172.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 30131312213 its reverse (31221313103), we get a palindrome (61352625316).

The spelling of 30131312213 in words is "thirty billion, one hundred thirty-one million, three hundred twelve thousand, two hundred thirteen".