320235401 has 2 divisors, whose sum is σ = 320235402. Its totient is φ = 320235400.

The previous prime is 320235361. The next prime is 320235437. The reversal of 320235401 is 104532023.

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., 236421376 + 83814025 = 15376^2 + 9155^2 .

It is an emirp because it is prime and its reverse (104532023) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 320235401 - 2⁶ = 320235337 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (320232401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160117700 + 160117701.

It is an arithmetic number, because the mean of its divisors is an integer number (160117701).

Almost surely, 2^320235401 is an apocalyptic number.

It is an amenable number.

320235401 is a deficient number, since it is larger than the sum of its proper divisors (1).

320235401 is an equidigital number, since it uses as much as digits as its factorization.

320235401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 320235401 is about 17895.1222683725. The cubic root of 320235401 is about 684.1580584140.

Adding to 320235401 its reverse (104532023), we get a palindrome (424767424).

The spelling of 320235401 in words is "three hundred twenty million, two hundred thirty-five thousand, four hundred one".