2110111133231 has 4 divisors (see below), whose sum is σ = 2131864856352. Its totient is φ = 2088357410112.

The previous prime is 2110111133197. The next prime is 2110111133233. The reversal of 2110111133231 is 1323311110112.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2110111133231 is a prime.

It is a super-2 number, since 2×2110111133231² (a number of 25 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 (2110111133233) 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, 10876861415 + ... + 10876861608.

It is an arithmetic number, because the mean of its divisors is an integer number (532966214088).

Almost surely, 2^{2110111133231} is an apocalyptic number.

2110111133231 is a deficient number, since it is larger than the sum of its proper divisors (21753723121).

2110111133231 is an equidigital number, since it uses as much as digits as its factorization.

2110111133231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21753723120.

The product of its (nonzero) digits is 108, while the sum is 20.

Adding to 2110111133231 its reverse (1323311110112), we get a palindrome (3433422243343).

The spelling of 2110111133231 in words is "two trillion, one hundred ten billion, one hundred eleven million, one hundred thirty-three thousand, two hundred thirty-one".