402143322013 has 2 divisors, whose sum is σ = 402143322014. Its totient is φ = 402143322012.

The previous prime is 402143322001. The next prime is 402143322047. The reversal of 402143322013 is 310223341204.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 360428527449 + 41714794564 = 600357^2 + 204242^2 .

It is a cyclic number.

It is not a de Polignac number, because 402143322013 - 2³³ = 393553387421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (402143322073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201071661006 + 201071661007.

It is an arithmetic number, because the mean of its divisors is an integer number (201071661007).

Almost surely, 2^402143322013 is an apocalyptic number.

It is an amenable number.

402143322013 is a deficient number, since it is larger than the sum of its proper divisors (1).

402143322013 is an equidigital number, since it uses as much as digits as its factorization.

402143322013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 402143322013 its reverse (310223341204), we get a palindrome (712366663217).

The spelling of 402143322013 in words is "four hundred two billion, one hundred forty-three million, three hundred twenty-two thousand, thirteen".