31310014423 has 4 divisors (see below), whose sum is σ = 31310905528. Its totient is φ = 31309123320.

The previous prime is 31310014409. The next prime is 31310014447. The reversal of 31310014423 is 32441001313.

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-31310014423 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31310014394 and 31310014403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31310014403) 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, 390588 + ... + 463873.

It is an arithmetic number, because the mean of its divisors is an integer number (7827726382).

Almost surely, 2^31310014423 is an apocalyptic number.

31310014423 is a deficient number, since it is larger than the sum of its proper divisors (891105).

31310014423 is an equidigital number, since it uses as much as digits as its factorization.

31310014423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 891104.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 31310014423 its reverse (32441001313), we get a palindrome (63751015736).

The spelling of 31310014423 in words is "thirty-one billion, three hundred ten million, fourteen thousand, four hundred twenty-three".