30320131233 has 16 divisors (see below), whose sum is σ = 47276573696. Its totient is φ = 16922863440.

The previous prime is 30320131217. The next prime is 30320131253. The reversal of 30320131233 is 33213102303.

It is not a de Polignac number, because 30320131233 - 2⁴ = 30320131217 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (30320131253) 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, 16787653 + ... + 16789458.

It is an arithmetic number, because the mean of its divisors is an integer number (2954785856).

Almost surely, 2^30320131233 is an apocalyptic number.

It is an amenable number.

30320131233 is a deficient number, since it is larger than the sum of its proper divisors (16956442463).

30320131233 is a wasteful number, since it uses less digits than its factorization.

30320131233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33577164.

The product of its (nonzero) digits is 972, while the sum is 21.

Adding to 30320131233 its reverse (33213102303), we get a palindrome (63533233536).

The spelling of 30320131233 in words is "thirty billion, three hundred twenty million, one hundred thirty-one thousand, two hundred thirty-three".