31142343999 has 16 divisors (see below), whose sum is σ = 46259186400. Its totient is φ = 18503673216.

The previous prime is 31142343943. The next prime is 31142344097. The reversal of 31142343999 is 99934324113.

It is not a de Polignac number, because 31142343999 - 2¹² = 31142339903 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31142343899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13766484 + ... + 13768745.

It is an arithmetic number, because the mean of its divisors is an integer number (2891199150).

Almost surely, 2^31142343999 is an apocalyptic number.

31142343999 is a gapful number since it is divisible by the number (39) formed by its first and last digit.

31142343999 is a deficient number, since it is larger than the sum of its proper divisors (15116842401).

31142343999 is a wasteful number, since it uses less digits than its factorization.

31142343999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27535274.

The product of its digits is 629856, while the sum is 48.

The spelling of 31142343999 in words is "thirty-one billion, one hundred forty-two million, three hundred forty-three thousand, nine hundred ninety-nine".