31340936383 has 4 divisors (see below), whose sum is σ = 31569702480. Its totient is φ = 31112170288.

The previous prime is 31340936353. The next prime is 31340936399. The reversal of 31340936383 is 38363904313.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31340936383 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 (31340936353) 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 3 ways as a sum of consecutive naturals, for example, 114382843 + ... + 114383116.

It is an arithmetic number, because the mean of its divisors is an integer number (7892425620).

Almost surely, 2^31340936383 is an apocalyptic number.

31340936383 is a deficient number, since it is larger than the sum of its proper divisors (228766097).

31340936383 is a wasteful number, since it uses less digits than its factorization.

31340936383 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228766096.

The product of its (nonzero) digits is 419904, while the sum is 43.

The spelling of 31340936383 in words is "thirty-one billion, three hundred forty million, nine hundred thirty-six thousand, three hundred eighty-three".