244131343021 has 4 divisors (see below), whose sum is σ = 244201843552. Its totient is φ = 244060842492.

The previous prime is 244131342967. The next prime is 244131343039. The reversal of 244131343021 is 120343131442.

It is a happy number.

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.

It is a cyclic number.

It is not a de Polignac number, because 244131343021 - 2³³ = 235541408429 is a prime.

It is a super-2 number, since 2×244131343021² (a number of 24 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 (244131343051) 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, 35245071 + ... + 35251996.

It is an arithmetic number, because the mean of its divisors is an integer number (61050460888).

Almost surely, 2^244131343021 is an apocalyptic number.

It is an amenable number.

244131343021 is a deficient number, since it is larger than the sum of its proper divisors (70500531).

244131343021 is an equidigital number, since it uses as much as digits as its factorization.

244131343021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70500530.

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

Adding to 244131343021 its reverse (120343131442), we get a palindrome (364474474463).

The spelling of 244131343021 in words is "two hundred forty-four billion, one hundred thirty-one million, three hundred forty-three thousand, twenty-one".