402133243321 has 2 divisors, whose sum is σ = 402133243322. Its totient is φ = 402133243320.

The previous prime is 402133243277. The next prime is 402133243363. The reversal of 402133243321 is 123342331204.

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., 386492239225 + 15641004096 = 621685^2 + 125064^2 .

It is a cyclic number.

It is not a de Polignac number, because 402133243321 - 2¹¹ = 402133241273 is a prime.

It is a super-2 number, since 2×402133243321² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 402133243321.

It is not a weakly prime, because it can be changed into another prime (402133243021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201066621660 + 201066621661.

It is an arithmetic number, because the mean of its divisors is an integer number (201066621661).

Almost surely, 2^402133243321 is an apocalyptic number.

It is an amenable number.

402133243321 is a deficient number, since it is larger than the sum of its proper divisors (1).

402133243321 is an equidigital number, since it uses as much as digits as its factorization.

402133243321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 402133243321 its reverse (123342331204), we get a palindrome (525475574525).

The spelling of 402133243321 in words is "four hundred two billion, one hundred thirty-three million, two hundred forty-three thousand, three hundred twenty-one".