4440322131021 has 80 divisors (see below), whose sum is σ = 7769148887808. Its totient is φ = 2474293651200.

The previous prime is 4440322131017. The next prime is 4440322131173. The reversal of 4440322131021 is 1201312230444.

4440322131021 is a `hidden beast` number, since 4 + 4 + 4 + 0 + 322 + 1 + 310 + 21 = 666.

It is not a de Polignac number, because 4440322131021 - 2² = 4440322131017 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4440322136021) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 51402456 + ... + 51488766.

Almost surely, 2^{4440322131021} is an apocalyptic number.

4440322131021 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

4440322131021 is a deficient number, since it is larger than the sum of its proper divisors (3328826756787).

4440322131021 is a wasteful number, since it uses less digits than its factorization.

4440322131021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88584 (or 88575 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 4440322131021 its reverse (1201312230444), we get a palindrome (5641634361465).

The spelling of 4440322131021 in words is "four trillion, four hundred forty billion, three hundred twenty-two million, one hundred thirty-one thousand, twenty-one".