31335380393 has 8 divisors (see below), whose sum is σ = 33024803520. Its totient is φ = 29649976560.

The previous prime is 31335380369. The next prime is 31335380449. The reversal of 31335380393 is 39308353313.

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

It is a cyclic number.

It is not a de Polignac number, because 31335380393 - 2¹⁴ = 31335364009 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31335380393.

It is not an unprimeable number, because it can be changed into a prime (31335380303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 988805 + ... + 1020002.

It is an arithmetic number, because the mean of its divisors is an integer number (4128100440).

Almost surely, 2^31335380393 is an apocalyptic number.

It is an amenable number.

31335380393 is a deficient number, since it is larger than the sum of its proper divisors (1689423127).

31335380393 is a wasteful number, since it uses less digits than its factorization.

31335380393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2009647.

The product of its (nonzero) digits is 262440, while the sum is 41.

The spelling of 31335380393 in words is "thirty-one billion, three hundred thirty-five million, three hundred eighty thousand, three hundred ninety-three".