4312044391 has 2 divisors, whose sum is σ = 4312044392. Its totient is φ = 4312044390.

The previous prime is 4312044389. The next prime is 4312044403. The reversal of 4312044391 is 1934402134.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4312044391 - 2¹ = 4312044389 is a prime.

Together with 4312044389, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4312044791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2156022195 + 2156022196.

It is an arithmetic number, because the mean of its divisors is an integer number (2156022196).

Almost surely, 2^4312044391 is an apocalyptic number.

4312044391 is a deficient number, since it is larger than the sum of its proper divisors (1).

4312044391 is an equidigital number, since it uses as much as digits as its factorization.

4312044391 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 4312044391 is about 65666.1586435509. The cubic root of 4312044391 is about 1627.6501942633.

The spelling of 4312044391 in words is "four billion, three hundred twelve million, forty-four thousand, three hundred ninety-one".