2132120229691 has 2 divisors, whose sum is σ = 2132120229692. Its totient is φ = 2132120229690.

The previous prime is 2132120229677. The next prime is 2132120229713. The reversal of 2132120229691 is 1969220212312.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2132120229691 - 2⁷ = 2132120229563 is a prime.

It is not a weakly prime, because it can be changed into another prime (2132120229601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1066060114845 + 1066060114846.

It is an arithmetic number, because the mean of its divisors is an integer number (1066060114846).

Almost surely, 2^{2132120229691} is an apocalyptic number.

2132120229691 is a deficient number, since it is larger than the sum of its proper divisors (1).

2132120229691 is an equidigital number, since it uses as much as digits as its factorization.

2132120229691 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46656, while the sum is 40.

The spelling of 2132120229691 in words is "two trillion, one hundred thirty-two billion, one hundred twenty million, two hundred twenty-nine thousand, six hundred ninety-one".