2420440331321 has 4 divisors (see below), whose sum is σ = 2430083520144. Its totient is φ = 2410797142500.

The previous prime is 2420440331297. The next prime is 2420440331327. The reversal of 2420440331321 is 1231330440242.

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 2420440331321 - 2³⁴ = 2403260462137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2420440331327) 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, 4821594035 + ... + 4821594536.

It is an arithmetic number, because the mean of its divisors is an integer number (607520880036).

Almost surely, 2^{2420440331321} is an apocalyptic number.

It is an amenable number.

2420440331321 is a deficient number, since it is larger than the sum of its proper divisors (9643188823).

2420440331321 is an equidigital number, since it uses as much as digits as its factorization.

2420440331321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9643188822.

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 2420440331321 its reverse (1231330440242), we get a palindrome (3651770771563).

The spelling of 2420440331321 in words is "two trillion, four hundred twenty billion, four hundred forty million, three hundred thirty-one thousand, three hundred twenty-one".