4313315251891 has 2 divisors, whose sum is σ = 4313315251892. Its totient is φ = 4313315251890.

The previous prime is 4313315251787. The next prime is 4313315251907. The reversal of 4313315251891 is 1981525133134.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4313315251891 is a prime.

It is not a weakly prime, because it can be changed into another prime (4313315252891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2156657625945 + 2156657625946.

It is an arithmetic number, because the mean of its divisors is an integer number (2156657625946).

Almost surely, 2^{4313315251891} is an apocalyptic number.

4313315251891 is a deficient number, since it is larger than the sum of its proper divisors (1).

4313315251891 is an equidigital number, since it uses as much as digits as its factorization.

4313315251891 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 388800, while the sum is 46.

The spelling of 4313315251891 in words is "four trillion, three hundred thirteen billion, three hundred fifteen million, two hundred fifty-one thousand, eight hundred ninety-one".