14021261231 has 4 divisors (see below), whose sum is σ = 14023119312. Its totient is φ = 14019403152.

The previous prime is 14021261227. The next prime is 14021261251. The reversal of 14021261231 is 13216212041.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 14021261231 - 2² = 14021261227 is a prime.

It is a super-2 number, since 2×14021261231² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 14021261197 and 14021261206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14021261251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 917675 + ... + 932828.

It is an arithmetic number, because the mean of its divisors is an integer number (3505779828).

Almost surely, 2^14021261231 is an apocalyptic number.

14021261231 is a deficient number, since it is larger than the sum of its proper divisors (1858081).

14021261231 is an equidigital number, since it uses as much as digits as its factorization.

14021261231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1858080.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 14021261231 its reverse (13216212041), we get a palindrome (27237473272).

The spelling of 14021261231 in words is "fourteen billion, twenty-one million, two hundred sixty-one thousand, two hundred thirty-one".