1308243315885 has 32 divisors (see below), whose sum is σ = 2285031997440. Its totient is φ = 633868468800.

The previous prime is 1308243315877. The next prime is 1308243315893. The reversal of 1308243315885 is 5885133428031.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1308243315877) and next prime (1308243315893).

It is not a de Polignac number, because 1308243315885 - 2³ = 1308243315877 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2452305 + ... + 2937734.

It is an arithmetic number, because the mean of its divisors is an integer number (71407249920).

Almost surely, 2^{1308243315885} is an apocalyptic number.

1308243315885 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1308243315885 is a deficient number, since it is larger than the sum of its proper divisors (976788681555).

1308243315885 is a wasteful number, since it uses less digits than its factorization.

1308243315885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5391529.

The product of its (nonzero) digits is 2764800, while the sum is 51.

The spelling of 1308243315885 in words is "one trillion, three hundred eight billion, two hundred forty-three million, three hundred fifteen thousand, eight hundred eighty-five".