4400242131321 has 12 divisors (see below), whose sum is σ = 6355972240020. Its totient is φ = 2933463859200.

The previous prime is 4400242131283. The next prime is 4400242131379. The reversal of 4400242131321 is 1231312420044.

4400242131321 is a `hidden beast` number, since 4 + 400 + 24 + 213 + 1 + 3 + 21 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1448508531600 + 2951733599721 = 1203540^2 + 1718061^2 .

It is not a de Polignac number, because 4400242131321 - 2¹⁴ = 4400242114937 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4400242131221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1655280 + ... + 3397121.

It is an arithmetic number, because the mean of its divisors is an integer number (529664353335).

Almost surely, 2^{4400242131321} is an apocalyptic number.

It is an amenable number.

4400242131321 is a deficient number, since it is larger than the sum of its proper divisors (1955730108699).

4400242131321 is a wasteful number, since it uses less digits than its factorization.

4400242131321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5149176 (or 5149173 counting only the distinct ones).

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

Adding to 4400242131321 its reverse (1231312420044), we get a palindrome (5631554551365).

The spelling of 4400242131321 in words is "four trillion, four hundred billion, two hundred forty-two million, one hundred thirty-one thousand, three hundred twenty-one".