20112030111231 has 12 divisors (see below), whose sum is σ = 29073039701160. Its totient is φ = 13397714132400.

The previous prime is 20112030111227. The next prime is 20112030111247. The reversal of 20112030111231 is 13211103021102.

20112030111231 is a `hidden beast` number, since 2 + 0 + 1 + 120 + 301 + 11 + 231 = 666.

It is not a de Polignac number, because 20112030111231 - 2² = 20112030111227 is a prime.

It is a super-2 number, since 2×20112030111231² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20112030111221) 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, 858816121 + ... + 858839538.

It is an arithmetic number, because the mean of its divisors is an integer number (2422753308430).

Almost surely, 2^{20112030111231} is an apocalyptic number.

20112030111231 is a deficient number, since it is larger than the sum of its proper divisors (8961009589929).

20112030111231 is a wasteful number, since it uses less digits than its factorization.

20112030111231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1717656966 (or 1717656963 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 20112030111231 its reverse (13211103021102), we get a palindrome (33323133132333).

The spelling of 20112030111231 in words is "twenty trillion, one hundred twelve billion, thirty million, one hundred eleven thousand, two hundred thirty-one".