321114397 has 2 divisors, whose sum is σ = 321114398. Its totient is φ = 321114396.

The previous prime is 321114389. The next prime is 321114407. The reversal of 321114397 is 793411123.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 167081476 + 154032921 = 12926^2 + 12411^2 .

It is an emirp because it is prime and its reverse (793411123) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 321114397 - 2³ = 321114389 is a prime.

It is a super-2 number, since 2×321114397² = 206228911921347218, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (321114097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160557198 + 160557199.

It is an arithmetic number, because the mean of its divisors is an integer number (160557199).

Almost surely, 2^321114397 is an apocalyptic number.

It is an amenable number.

321114397 is a deficient number, since it is larger than the sum of its proper divisors (1).

321114397 is an equidigital number, since it uses as much as digits as its factorization.

321114397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4536, while the sum is 31.

The square root of 321114397 is about 17919.6650917365. The cubic root of 321114397 is about 684.7834554482.

The spelling of 321114397 in words is "three hundred twenty-one million, one hundred fourteen thousand, three hundred ninety-seven".