2021120311131 has 48 divisors (see below), whose sum is σ = 2997251786880. Its totient is φ = 1311955413120.

The previous prime is 2021120311103. The next prime is 2021120311141. The reversal of 2021120311131 is 1311130211202.

2021120311131 is a `hidden beast` number, since 202 + 1 + 1 + 20 + 311 + 131 = 666.

It is not a de Polignac number, because 2021120311131 - 2¹⁷ = 2021120180059 is a prime.

It is a super-2 number, since 2×2021120311131² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2021120311141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 277508416 + ... + 277515698.

It is an arithmetic number, because the mean of its divisors is an integer number (62442745560).

Almost surely, 2^{2021120311131} is an apocalyptic number.

2021120311131 is a deficient number, since it is larger than the sum of its proper divisors (976131475749).

2021120311131 is a wasteful number, since it uses less digits than its factorization.

2021120311131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12616 (or 12613 counting only the distinct ones).

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

Adding to 2021120311131 its reverse (1311130211202), we get a palindrome (3332250522333).

The spelling of 2021120311131 in words is "two trillion, twenty-one billion, one hundred twenty million, three hundred eleven thousand, one hundred thirty-one".