2120111111131 has 8 divisors (see below), whose sum is σ = 2284817038560. Its totient is φ = 1955636677632.

The previous prime is 2120111111081. The next prime is 2120111111159. The reversal of 2120111111131 is 1311111110212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2120111111131 is a prime.

It is a super-2 number, since 2×2120111111131² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2120111111171) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57854455 + ... + 57891088.

It is an arithmetic number, because the mean of its divisors is an integer number (285602129820).

Almost surely, 2^{2120111111131} is an apocalyptic number.

2120111111131 is a deficient number, since it is larger than the sum of its proper divisors (164705927429).

2120111111131 is a wasteful number, since it uses less digits than its factorization.

2120111111131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115746965.

The product of its (nonzero) digits is 12, while the sum is 16.

Adding to 2120111111131 its reverse (1311111110212), we get a palindrome (3431222221343).

The spelling of 2120111111131 in words is "two trillion, one hundred twenty billion, one hundred eleven million, one hundred eleven thousand, one hundred thirty-one".