2132113011961 has 2 divisors, whose sum is σ = 2132113011962. Its totient is φ = 2132113011960.

The previous prime is 2132113011929. The next prime is 2132113012067. The reversal of 2132113011961 is 1691103112312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1536283401961 + 595829610000 = 1239469^2 + 771900^2 .

It is a cyclic number.

It is not a de Polignac number, because 2132113011961 - 2⁵ = 2132113011929 is a prime.

It is a super-4 number, since 4×2132113011961⁴ (a number of 50 digits) contains 4444 as substring.

It is not a weakly prime, because it can be changed into another prime (2132113011911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1066056505980 + 1066056505981.

It is an arithmetic number, because the mean of its divisors is an integer number (1066056505981).

Almost surely, 2^{2132113011961} is an apocalyptic number.

It is an amenable number.

2132113011961 is a deficient number, since it is larger than the sum of its proper divisors (1).

2132113011961 is an equidigital number, since it uses as much as digits as its factorization.

2132113011961 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944, while the sum is 31.

The spelling of 2132113011961 in words is "two trillion, one hundred thirty-two billion, one hundred thirteen million, eleven thousand, nine hundred sixty-one".