2120313112111 has 16 divisors (see below), whose sum is σ = 2149149248064. Its totient is φ = 2091623030784.

The previous prime is 2120313112103. The next prime is 2120313112129. The reversal of 2120313112111 is 1112113130212.

It is a cyclic number.

It is not a de Polignac number, because 2120313112111 - 2³ = 2120313112103 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120313115111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 149806611 + ... + 149820763.

It is an arithmetic number, because the mean of its divisors is an integer number (134321828004).

Almost surely, 2^{2120313112111} is an apocalyptic number.

2120313112111 is a deficient number, since it is larger than the sum of its proper divisors (28836135953).

2120313112111 is a wasteful number, since it uses less digits than its factorization.

2120313112111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19170.

The product of its (nonzero) digits is 72, while the sum is 19.

Adding to 2120313112111 its reverse (1112113130212), we get a palindrome (3232426242323).

The spelling of 2120313112111 in words is "two trillion, one hundred twenty billion, three hundred thirteen million, one hundred twelve thousand, one hundred eleven".