13431354997 has 2 divisors, whose sum is σ = 13431354998. Its totient is φ = 13431354996.

The previous prime is 13431354983. The next prime is 13431355109. The reversal of 13431354997 is 79945313431.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8670216996 + 4761138001 = 93114^2 + 69001^2 .

It is a cyclic number.

It is not a de Polignac number, because 13431354997 - 2¹⁹ = 13430830709 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13431354997.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13431352997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6715677498 + 6715677499.

It is an arithmetic number, because the mean of its divisors is an integer number (6715677499).

Almost surely, 2^13431354997 is an apocalyptic number.

It is an amenable number.

13431354997 is a deficient number, since it is larger than the sum of its proper divisors (1).

13431354997 is an equidigital number, since it uses as much as digits as its factorization.

13431354997 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1224720, while the sum is 49.

The spelling of 13431354997 in words is "thirteen billion, four hundred thirty-one million, three hundred fifty-four thousand, nine hundred ninety-seven".