321368892373 has 2 divisors, whose sum is σ = 321368892374. Its totient is φ = 321368892372.

The previous prime is 321368892349. The next prime is 321368892379. The reversal of 321368892373 is 373298863123.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 319352702769 + 2016189604 = 565113^2 + 44902^2 .

It is an emirp because it is prime and its reverse (373298863123) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 321368892373 - 2³³ = 312778957781 is a prime.

It is a super-2 number, since 2×321368892373² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (321368892379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160684446186 + 160684446187.

It is an arithmetic number, because the mean of its divisors is an integer number (160684446187).

Almost surely, 2^321368892373 is an apocalyptic number.

It is an amenable number.

321368892373 is a deficient number, since it is larger than the sum of its proper divisors (1).

321368892373 is an equidigital number, since it uses as much as digits as its factorization.

321368892373 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7838208, while the sum is 55.

The spelling of 321368892373 in words is "three hundred twenty-one billion, three hundred sixty-eight million, eight hundred ninety-two thousand, three hundred seventy-three".