14221320531 has 16 divisors (see below), whose sum is σ = 20744173440. Its totient is φ = 8594558720.

The previous prime is 14221320523. The next prime is 14221320541. The reversal of 14221320531 is 13502312241.

It is not a de Polignac number, because 14221320531 - 2³ = 14221320523 is a prime.

It is a super-2 number, since 2×14221320531² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (14221320511) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 598761 + ... + 622058.

It is an arithmetic number, because the mean of its divisors is an integer number (1296510840).

Almost surely, 2^14221320531 is an apocalyptic number.

14221320531 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

14221320531 is a deficient number, since it is larger than the sum of its proper divisors (6522852909).

14221320531 is a wasteful number, since it uses less digits than its factorization.

14221320531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1221186.

The product of its (nonzero) digits is 1440, while the sum is 24.

Adding to 14221320531 its reverse (13502312241), we get a palindrome (27723632772).

The spelling of 14221320531 in words is "fourteen billion, two hundred twenty-one million, three hundred twenty thousand, five hundred thirty-one".