2131301233121 has 2 divisors, whose sum is σ = 2131301233122. Its totient is φ = 2131301233120.

The previous prime is 2131301233093. The next prime is 2131301233129. The reversal of 2131301233121 is 1213321031312.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1747514788096 + 383786445025 = 1321936^2 + 619505^2 .

It is a cyclic number.

It is not a de Polignac number, because 2131301233121 - 2²² = 2131297038817 is a prime.

It is not a weakly prime, because it can be changed into another prime (2131301233129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1065650616560 + 1065650616561.

It is an arithmetic number, because the mean of its divisors is an integer number (1065650616561).

Almost surely, 2^{2131301233121} is an apocalyptic number.

It is an amenable number.

2131301233121 is a deficient number, since it is larger than the sum of its proper divisors (1).

2131301233121 is an equidigital number, since it uses as much as digits as its factorization.

2131301233121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 2131301233121 its reverse (1213321031312), we get a palindrome (3344622264433).

The spelling of 2131301233121 in words is "two trillion, one hundred thirty-one billion, three hundred one million, two hundred thirty-three thousand, one hundred twenty-one".