402254054312321 has 4 divisors (see below), whose sum is σ = 402322898072112. Its totient is φ = 402185210552532.

The previous prime is 402254054312317. The next prime is 402254054312351. The reversal of 402254054312321 is 123213450452204.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 402254054312321 - 2² = 402254054312317 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (402254054312351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34421871131 + ... + 34421882816.

It is an arithmetic number, because the mean of its divisors is an integer number (100580724518028).

Almost surely, 2^{402254054312321} is an apocalyptic number.

It is an amenable number.

402254054312321 is a deficient number, since it is larger than the sum of its proper divisors (68843759791).

402254054312321 is an equidigital number, since it uses as much as digits as its factorization.

402254054312321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68843759790.

The product of its (nonzero) digits is 230400, while the sum is 38.

The spelling of 402254054312321 in words is "four hundred two trillion, two hundred fifty-four billion, fifty-four million, three hundred twelve thousand, three hundred twenty-one".