13242021143 has 4 divisors (see below), whose sum is σ = 14260638168. Its totient is φ = 12223404120.

The previous prime is 13242021137. The next prime is 13242021187. The reversal of 13242021143 is 34112024231.

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 13242021143 - 2³² = 8947053847 is a prime.

It is a super-2 number, since 2×13242021143² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13242021103) 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, 509308493 + ... + 509308518.

It is an arithmetic number, because the mean of its divisors is an integer number (3565159542).

Almost surely, 2^13242021143 is an apocalyptic number.

13242021143 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

13242021143 is a deficient number, since it is larger than the sum of its proper divisors (1018617025).

13242021143 is a wasteful number, since it uses less digits than its factorization.

13242021143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1018617024.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 13242021143 its reverse (34112024231), we get a palindrome (47354045374).

The spelling of 13242021143 in words is "thirteen billion, two hundred forty-two million, twenty-one thousand, one hundred forty-three".