30331220001 has 4 divisors (see below), whose sum is σ = 40441626672. Its totient is φ = 20220813332.

The previous prime is 30331219993. The next prime is 30331220033. The reversal of 30331220001 is 10002213303.

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.

It is a cyclic number.

It is not a de Polignac number, because 30331220001 - 2³ = 30331219993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30331220041) 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, 5055203331 + ... + 5055203336.

It is an arithmetic number, because the mean of its divisors is an integer number (10110406668).

Almost surely, 2^30331220001 is an apocalyptic number.

It is an amenable number.

30331220001 is a deficient number, since it is larger than the sum of its proper divisors (10110406671).

30331220001 is a wasteful number, since it uses less digits than its factorization.

30331220001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10110406670.

The product of its (nonzero) digits is 108, while the sum is 15.

Adding to 30331220001 its reverse (10002213303), we get a palindrome (40333433304).

The spelling of 30331220001 in words is "thirty billion, three hundred thirty-one million, two hundred twenty thousand, one".