263131455343 has 2 divisors, whose sum is σ = 263131455344. Its totient is φ = 263131455342.

The previous prime is 263131455287. The next prime is 263131455421. The reversal of 263131455343 is 343554131362.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-263131455343 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 263131455296 and 263131455305.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (263131755343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 131565727671 + 131565727672.

It is an arithmetic number, because the mean of its divisors is an integer number (131565727672).

Almost surely, 2^263131455343 is an apocalyptic number.

263131455343 is a deficient number, since it is larger than the sum of its proper divisors (1).

263131455343 is an equidigital number, since it uses as much as digits as its factorization.

263131455343 is an evil number, because the sum of its binary digits is even.

The product of its digits is 388800, while the sum is 40.

The spelling of 263131455343 in words is "two hundred sixty-three billion, one hundred thirty-one million, four hundred fifty-five thousand, three hundred forty-three".