2102332391 has 2 divisors, whose sum is σ = 2102332392. Its totient is φ = 2102332390.

The previous prime is 2102332373. The next prime is 2102332403. The reversal of 2102332391 is 1932332012.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2102332391 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2102332391.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2102332891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1051166195 + 1051166196.

It is an arithmetic number, because the mean of its divisors is an integer number (1051166196).

Almost surely, 2^2102332391 is an apocalyptic number.

2102332391 is a deficient number, since it is larger than the sum of its proper divisors (1).

2102332391 is an equidigital number, since it uses as much as digits as its factorization.

2102332391 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 26.

The square root of 2102332391 is about 45851.1983594758. The cubic root of 2102332391 is about 1281.0530866099.

The spelling of 2102332391 in words is "two billion, one hundred two million, three hundred thirty-two thousand, three hundred ninety-one".