31143303131999 has 8 divisors (see below), whose sum is σ = 32530419182592. Its totient is φ = 29758942030840.

The previous prime is 31143303131947. The next prime is 31143303132023. The reversal of 31143303131999 is 99913130334113.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31143303131999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31143503131999) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 688714247 + ... + 688759464.

It is an arithmetic number, because the mean of its divisors is an integer number (4066302397824).

Almost surely, 2^{31143303131999} is an apocalyptic number.

31143303131999 is a deficient number, since it is larger than the sum of its proper divisors (1387116050593).

31143303131999 is a wasteful number, since it uses less digits than its factorization.

31143303131999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1377474717.

The product of its (nonzero) digits is 708588, while the sum is 50.

The spelling of 31143303131999 in words is "thirty-one trillion, one hundred forty-three billion, three hundred three million, one hundred thirty-one thousand, nine hundred ninety-nine".