2131111030111 has 24 divisors (see below), whose sum is σ = 2501438889600. Its totient is φ = 1810173560832.

The previous prime is 2131111030049. The next prime is 2131111030123. The reversal of 2131111030111 is 1110301111312.

It is not a de Polignac number, because 2131111030111 - 2⁹ = 2131111029599 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2131111030141) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33450415 + ... + 33514063.

It is an arithmetic number, because the mean of its divisors is an integer number (104226620400).

Almost surely, 2^{2131111030111} is an apocalyptic number.

2131111030111 is a deficient number, since it is larger than the sum of its proper divisors (370327859489).

2131111030111 is a wasteful number, since it uses less digits than its factorization.

2131111030111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69823 (or 69816 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 16.

Adding to 2131111030111 its reverse (1110301111312), we get a palindrome (3241412141423).

The spelling of 2131111030111 in words is "two trillion, one hundred thirty-one billion, one hundred eleven million, thirty thousand, one hundred eleven".