2121112010131 has 2 divisors, whose sum is σ = 2121112010132. Its totient is φ = 2121112010130.

The previous prime is 2121112010099. The next prime is 2121112010177. The reversal of 2121112010131 is 1310102111212.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2121112010131 - 2⁵ = 2121112010099 is a prime.

It is a super-2 number, since 2×2121112010131² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2121112010191) 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 as a sum of consecutive naturals, namely, 1060556005065 + 1060556005066.

It is an arithmetic number, because the mean of its divisors is an integer number (1060556005066).

Almost surely, 2^{2121112010131} is an apocalyptic number.

2121112010131 is a deficient number, since it is larger than the sum of its proper divisors (1).

2121112010131 is an equidigital number, since it uses as much as digits as its factorization.

2121112010131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 2121112010131 its reverse (1310102111212), we get a palindrome (3431214121343).

The spelling of 2121112010131 in words is "two trillion, one hundred twenty-one billion, one hundred twelve million, ten thousand, one hundred thirty-one".