3431130120991 has 2 divisors, whose sum is σ = 3431130120992. Its totient is φ = 3431130120990.

The previous prime is 3431130120961. The next prime is 3431130121039. The reversal of 3431130120991 is 1990210311343.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3431130120991 - 2⁹ = 3431130120479 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3431130120991.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3431130120931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1715565060495 + 1715565060496.

It is an arithmetic number, because the mean of its divisors is an integer number (1715565060496).

Almost surely, 2^{3431130120991} is an apocalyptic number.

3431130120991 is a deficient number, since it is larger than the sum of its proper divisors (1).

3431130120991 is an equidigital number, since it uses as much as digits as its factorization.

3431130120991 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17496, while the sum is 37.

The spelling of 3431130120991 in words is "three trillion, four hundred thirty-one billion, one hundred thirty million, one hundred twenty thousand, nine hundred ninety-one".