2923120391 has 2 divisors, whose sum is σ = 2923120392. Its totient is φ = 2923120390.

The previous prime is 2923120381. The next prime is 2923120457. The reversal of 2923120391 is 1930213292.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2923120391 - 2¹⁸ = 2922858247 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2923120381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1461560195 + 1461560196.

It is an arithmetic number, because the mean of its divisors is an integer number (1461560196).

Almost surely, 2^2923120391 is an apocalyptic number.

2923120391 is a deficient number, since it is larger than the sum of its proper divisors (1).

2923120391 is an equidigital number, since it uses as much as digits as its factorization.

2923120391 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5832, while the sum is 32.

The square root of 2923120391 is about 54065.8893480908. The cubic root of 2923120391 is about 1429.8228530133.

The spelling of 2923120391 in words is "two billion, nine hundred twenty-three million, one hundred twenty thousand, three hundred ninety-one".