13244142331 has 12 divisors (see below), whose sum is σ = 15427511472. Its totient is φ = 11336604048.

The previous prime is 13244142319. The next prime is 13244142347. The reversal of 13244142331 is 13324144231.

It is a happy number.

It is not a de Polignac number, because 13244142331 - 2⁷ = 13244142203 is a prime.

It is a super-2 number, since 2×13244142331² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13244142331.

It is not an unprimeable number, because it can be changed into a prime (13244142391) 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 11 ways as a sum of consecutive naturals, for example, 148455 + ... + 220288.

It is an arithmetic number, because the mean of its divisors is an integer number (1285625956).

Almost surely, 2^13244142331 is an apocalyptic number.

13244142331 is a deficient number, since it is larger than the sum of its proper divisors (2183369141).

13244142331 is an equidigital number, since it uses as much as digits as its factorization.

13244142331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 369490 (or 369483 counting only the distinct ones).

The product of its digits is 6912, while the sum is 28.

Adding to 13244142331 its reverse (13324144231), we get a palindrome (26568286562).

The spelling of 13244142331 in words is "thirteen billion, two hundred forty-four million, one hundred forty-two thousand, three hundred thirty-one".