402104401213 has 2 divisors, whose sum is σ = 402104401214. Its totient is φ = 402104401212.

The previous prime is 402104401189. The next prime is 402104401229. The reversal of 402104401213 is 312104401204.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 399421472004 + 2682929209 = 631998^2 + 51797^2 .

It is a cyclic number.

It is not a de Polignac number, because 402104401213 - 2³⁷ = 264665447741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (402104401613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201052200606 + 201052200607.

It is an arithmetic number, because the mean of its divisors is an integer number (201052200607).

Almost surely, 2^402104401213 is an apocalyptic number.

It is an amenable number.

402104401213 is a deficient number, since it is larger than the sum of its proper divisors (1).

402104401213 is an equidigital number, since it uses as much as digits as its factorization.

402104401213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 402104401213 its reverse (312104401204), we get a palindrome (714208802417).

Subtracting from 402104401213 its reverse (312104401204), we obtain a palindrome (90000000009).

The spelling of 402104401213 in words is "four hundred two billion, one hundred four million, four hundred one thousand, two hundred thirteen".