30131222113 has 4 divisors (see below), whose sum is σ = 30134708928. Its totient is φ = 30127735300.

The previous prime is 30131222089. The next prime is 30131222123. The reversal of 30131222113 is 31122213103.

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, and also an emirpimes, since its reverse is a distinct semiprime: 31122213103 = 331 ⋅94024813.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30131222113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30131222123) 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, 1730413 + ... + 1747738.

It is an arithmetic number, because the mean of its divisors is an integer number (7533677232).

Almost surely, 2^30131222113 is an apocalyptic number.

It is an amenable number.

30131222113 is a deficient number, since it is larger than the sum of its proper divisors (3486815).

30131222113 is an equidigital number, since it uses as much as digits as its factorization.

30131222113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3486814.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 30131222113 its reverse (31122213103), we get a palindrome (61253435216).

The spelling of 30131222113 in words is "thirty billion, one hundred thirty-one million, two hundred twenty-two thousand, one hundred thirteen".