14312313021 has 4 divisors (see below), whose sum is σ = 19083084032. Its totient is φ = 9541542012.

The previous prime is 14312313013. The next prime is 14312313049. The reversal of 14312313021 is 12031321341.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 14312313021 - 2³ = 14312313013 is a prime.

It is a super-2 number, since 2×14312313021² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14312313121) 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, 2385385501 + ... + 2385385506.

It is an arithmetic number, because the mean of its divisors is an integer number (4770771008).

Almost surely, 2^14312313021 is an apocalyptic number.

It is an amenable number.

14312313021 is a deficient number, since it is larger than the sum of its proper divisors (4770771011).

14312313021 is an equidigital number, since it uses as much as digits as its factorization.

14312313021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4770771010.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 14312313021 its reverse (12031321341), we get a palindrome (26343634362).

The spelling of 14312313021 in words is "fourteen billion, three hundred twelve million, three hundred thirteen thousand, twenty-one".