31423203199 has 4 divisors (see below), whose sum is σ = 32506761960. Its totient is φ = 30339644440.

The previous prime is 31423203197. The next prime is 31423203241. The reversal of 31423203199 is 99130232413.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 31423203199 - 2¹ = 31423203197 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 (31423203193) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 541779337 + ... + 541779394.

It is an arithmetic number, because the mean of its divisors is an integer number (8126690490).

Almost surely, 2^31423203199 is an apocalyptic number.

31423203199 is a deficient number, since it is larger than the sum of its proper divisors (1083558761).

31423203199 is a wasteful number, since it uses less digits than its factorization.

31423203199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1083558760.

The product of its (nonzero) digits is 34992, while the sum is 37.

The spelling of 31423203199 in words is "thirty-one billion, four hundred twenty-three million, two hundred three thousand, one hundred ninety-nine".