31102423399 has 4 divisors (see below), whose sum is σ = 31104145800. Its totient is φ = 31100701000.

The previous prime is 31102423397. The next prime is 31102423427. The reversal of 31102423399 is 99332420113.

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 31102423399 - 2¹ = 31102423397 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 (31102423393) 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, 833824 + ... + 870325.

It is an arithmetic number, because the mean of its divisors is an integer number (7776036450).

Almost surely, 2^31102423399 is an apocalyptic number.

31102423399 is a deficient number, since it is larger than the sum of its proper divisors (1722401).

31102423399 is a wasteful number, since it uses less digits than its factorization.

31102423399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1722400.

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

The spelling of 31102423399 in words is "thirty-one billion, one hundred two million, four hundred twenty-three thousand, three hundred ninety-nine".