1303431243255 has 48 divisors (see below), whose sum is σ = 2271023040000. Its totient is φ = 691551546048.

The previous prime is 1303431243229. The next prime is 1303431243263. The reversal of 1303431243255 is 5523421343031.

1303431243255 is a `hidden beast` number, since 1 + 303 + 4 + 3 + 1 + 24 + 325 + 5 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-1303431243255 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 83443836 + ... + 83459454.

It is an arithmetic number, because the mean of its divisors is an integer number (47312980000).

Almost surely, 2^{1303431243255} is an apocalyptic number.

1303431243255 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1303431243255 is a deficient number, since it is larger than the sum of its proper divisors (967591796745).

1303431243255 is a wasteful number, since it uses less digits than its factorization.

1303431243255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25148 (or 25145 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 36.

Adding to 1303431243255 its reverse (5523421343031), we get a palindrome (6826852586286).

The spelling of 1303431243255 in words is "one trillion, three hundred three billion, four hundred thirty-one million, two hundred forty-three thousand, two hundred fifty-five".