30112212011231 has 12 divisors (see below), whose sum is σ = 36320546979792. Its totient is φ = 24452021781504.

The previous prime is 30112212011207. The next prime is 30112212011239. The reversal of 30112212011231 is 13211021221103.

It is a de Polignac number, because none of the positive numbers 2^k-30112212011231 is a prime.

It is a super-2 number, since 2×30112212011231² (a number of 28 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 (30112212011239) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5958092450 + ... + 5958097503.

It is an arithmetic number, because the mean of its divisors is an integer number (3026712248316).

Almost surely, 2^{30112212011231} is an apocalyptic number.

30112212011231 is a deficient number, since it is larger than the sum of its proper divisors (6208334968561).

30112212011231 is a wasteful number, since it uses less digits than its factorization.

30112212011231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11916189998 (or 11916189979 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 30112212011231 its reverse (13211021221103), we get a palindrome (43323233232334).

The spelling of 30112212011231 in words is "thirty trillion, one hundred twelve billion, two hundred twelve million, eleven thousand, two hundred thirty-one".