14312031021 has 12 divisors (see below), whose sum is σ = 21438598272. Its totient is φ = 9541353852.

The previous prime is 14312031017. The next prime is 14312031031. The reversal of 14312031021 is 12013021341.

14312031021 is a `hidden beast` number, since 1 + 431 + 203 + 10 + 21 = 666.

It is not a de Polignac number, because 14312031021 - 2² = 14312031017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 14312030985 and 14312031003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14312031011) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29448381 + ... + 29448866.

It is an arithmetic number, because the mean of its divisors is an integer number (1786549856).

Almost surely, 2^14312031021 is an apocalyptic number.

It is an amenable number.

14312031021 is a deficient number, since it is larger than the sum of its proper divisors (7126567251).

14312031021 is an frugal number, since it uses more digits than its factorization.

14312031021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58897262 (or 58897250 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 14312031021 its reverse (12013021341), we get a palindrome (26325052362).

The spelling of 14312031021 in words is "fourteen billion, three hundred twelve million, thirty-one thousand, twenty-one".