14006321931 has 32 divisors (see below), whose sum is σ = 21871894528. Its totient is φ = 7805820960.

The previous prime is 14006321929. The next prime is 14006321963. The reversal of 14006321931 is 13912360041.

It is not a de Polignac number, because 14006321931 - 2¹ = 14006321929 is a prime.

It is a super-2 number, since 2×14006321931² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14006321921) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 612750 + ... + 635196.

It is an arithmetic number, because the mean of its divisors is an integer number (683496704).

Almost surely, 2^14006321931 is an apocalyptic number.

14006321931 is a deficient number, since it is larger than the sum of its proper divisors (7865572597).

14006321931 is a wasteful number, since it uses less digits than its factorization.

14006321931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23191.

The product of its (nonzero) digits is 3888, while the sum is 30.

Adding to 14006321931 its reverse (13912360041), we get a palindrome (27918681972).

The spelling of 14006321931 in words is "fourteen billion, six million, three hundred twenty-one thousand, nine hundred thirty-one".