2991812323 has 2 divisors, whose sum is σ = 2991812324. Its totient is φ = 2991812322.

The previous prime is 2991812293. The next prime is 2991812357. The reversal of 2991812323 is 3232181992.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2991812323 is a prime.

It is not a weakly prime, because it can be changed into another prime (2991812123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1495906161 + 1495906162.

It is an arithmetic number, because the mean of its divisors is an integer number (1495906162).

Almost surely, 2^2991812323 is an apocalyptic number.

2991812323 is a deficient number, since it is larger than the sum of its proper divisors (1).

2991812323 is an equidigital number, since it uses as much as digits as its factorization.

2991812323 is an evil number, because the sum of its binary digits is even.

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

The square root of 2991812323 is about 54697.4617601219. The cubic root of 2991812323 is about 1440.9362999965.

The spelling of 2991812323 in words is "two billion, nine hundred ninety-one million, eight hundred twelve thousand, three hundred twenty-three".