14021205531 has 4 divisors (see below), whose sum is σ = 18694940712. Its totient is φ = 9347470352.

The previous prime is 14021205449. The next prime is 14021205533. The reversal of 14021205531 is 13550212041.

It is a happy number.

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 14021205531 - 2³⁰ = 12947463707 is a prime.

It is a super-2 number, since 2×14021205531² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (14021205533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2336867586 + ... + 2336867591.

It is an arithmetic number, because the mean of its divisors is an integer number (4673735178).

Almost surely, 2^14021205531 is an apocalyptic number.

14021205531 is a deficient number, since it is larger than the sum of its proper divisors (4673735181).

14021205531 is an equidigital number, since it uses as much as digits as its factorization.

14021205531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4673735180.

The product of its (nonzero) digits is 1200, while the sum is 24.

Adding to 14021205531 its reverse (13550212041), we get a palindrome (27571417572).

The spelling of 14021205531 in words is "fourteen billion, twenty-one million, two hundred five thousand, five hundred thirty-one".