30112123221013 has 4 divisors (see below), whose sum is σ = 30680276489388. Its totient is φ = 29543969952640.

The previous prime is 30112123221007. The next prime is 30112123221041. The reversal of 30112123221013 is 31012232121103.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7996011709284 + 22116111511729 = 2827722^2 + 4702777^2 .

It is a cyclic number.

It is not a de Polignac number, because 30112123221013 - 2⁵ = 30112123220981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30112123221613) 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, 284076634108 + ... + 284076634213.

It is an arithmetic number, because the mean of its divisors is an integer number (7670069122347).

Almost surely, 2^{30112123221013} is an apocalyptic number.

It is an amenable number.

30112123221013 is a deficient number, since it is larger than the sum of its proper divisors (568153268375).

30112123221013 is an equidigital number, since it uses as much as digits as its factorization.

30112123221013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 568153268374.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 30112123221013 its reverse (31012232121103), we get a palindrome (61124355342116).

The spelling of 30112123221013 in words is "thirty trillion, one hundred twelve billion, one hundred twenty-three million, two hundred twenty-one thousand, thirteen".