30311012231 has 8 divisors (see below), whose sum is σ = 31631160960. Its totient is φ = 28991053432.

The previous prime is 30311012203. The next prime is 30311012269. The reversal of 30311012231 is 13221011303.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 30311012231 - 2⁶ = 30311012167 is a prime.

It is a super-2 number, since 2×30311012231² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30311012201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 349280 + ... + 427338.

It is an arithmetic number, because the mean of its divisors is an integer number (3953895120).

Almost surely, 2^30311012231 is an apocalyptic number.

30311012231 is a deficient number, since it is larger than the sum of its proper divisors (1320148729).

30311012231 is a wasteful number, since it uses less digits than its factorization.

30311012231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94965.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 30311012231 its reverse (13221011303), we get a palindrome (43532023534).

The spelling of 30311012231 in words is "thirty billion, three hundred eleven million, twelve thousand, two hundred thirty-one".