402244023361 has 2 divisors, whose sum is σ = 402244023362. Its totient is φ = 402244023360.

The previous prime is 402244023323. The next prime is 402244023371. The reversal of 402244023361 is 163320442204.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 399827317761 + 2416705600 = 632319^2 + 49160^2 .

It is a cyclic number.

It is not a de Polignac number, because 402244023361 - 2¹¹ = 402244021313 is a prime.

It is not a weakly prime, because it can be changed into another prime (402244023301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201122011680 + 201122011681.

It is an arithmetic number, because the mean of its divisors is an integer number (201122011681).

Almost surely, 2^402244023361 is an apocalyptic number.

It is an amenable number.

402244023361 is a deficient number, since it is larger than the sum of its proper divisors (1).

402244023361 is an equidigital number, since it uses as much as digits as its factorization.

402244023361 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27648, while the sum is 31.

Adding to 402244023361 its reverse (163320442204), we get a palindrome (565564465565).

The spelling of 402244023361 in words is "four hundred two billion, two hundred forty-four million, twenty-three thousand, three hundred sixty-one".