2402116321 has 6 divisors (see below), whose sum is σ = 2640342866. Its totient is φ = 2183742000.

The previous prime is 2402116291. The next prime is 2402116333. The reversal of 2402116321 is 1236112042.

2402116321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 1349827600 + 1052288721 = 36740^2 + 32439^2 .

It is not a de Polignac number, because 2402116321 - 2⁷ = 2402116193 is a prime.

It is a super-2 number, since 2×2402116321² = 11540325639229150082, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2402116292 and 2402116301.

It is not an unprimeable number, because it can be changed into a prime (2402116351) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9925980 + ... + 9926221.

Almost surely, 2^2402116321 is an apocalyptic number.

It is an amenable number.

2402116321 is a deficient number, since it is larger than the sum of its proper divisors (238226545).

2402116321 is a wasteful number, since it uses less digits than its factorization.

2402116321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19852223 (or 19852212 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 2402116321 is about 49011.3897068834. The cubic root of 2402116321 is about 1339.2593220500.

Adding to 2402116321 its reverse (1236112042), we get a palindrome (3638228363).

The spelling of 2402116321 in words is "two billion, four hundred two million, one hundred sixteen thousand, three hundred twenty-one".