14351031421 has 4 divisors (see below), whose sum is σ = 14356677312. Its totient is φ = 14345385532.

The previous prime is 14351031391. The next prime is 14351031463. The reversal of 14351031421 is 12413015341.

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, and also an emirpimes, since its reverse is a distinct semiprime: 12413015341 = 17 ⋅730177373.

It is a cyclic number.

It is not a de Polignac number, because 14351031421 - 2⁷ = 14351031293 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14351041421) 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, 2819131 + ... + 2824216.

It is an arithmetic number, because the mean of its divisors is an integer number (3589169328).

Almost surely, 2^14351031421 is an apocalyptic number.

It is an amenable number.

14351031421 is a deficient number, since it is larger than the sum of its proper divisors (5645891).

14351031421 is an equidigital number, since it uses as much as digits as its factorization.

14351031421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5645890.

The product of its (nonzero) digits is 1440, while the sum is 25.

Adding to 14351031421 its reverse (12413015341), we get a palindrome (26764046762).

The spelling of 14351031421 in words is "fourteen billion, three hundred fifty-one million, thirty-one thousand, four hundred twenty-one".