231601303 has 2 divisors, whose sum is σ = 231601304. Its totient is φ = 231601302.

The previous prime is 231601261. The next prime is 231601309. The reversal of 231601303 is 303106132.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 231601303 - 2¹⁷ = 231470231 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231601309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115800651 + 115800652.

It is an arithmetic number, because the mean of its divisors is an integer number (115800652).

Almost surely, 2^231601303 is an apocalyptic number.

231601303 is a deficient number, since it is larger than the sum of its proper divisors (1).

231601303 is an equidigital number, since it uses as much as digits as its factorization.

231601303 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 231601303 is about 15218.4527137288. The cubic root of 231601303 is about 614.1111737987. Note that the first 4 decimals are identical.

Adding to 231601303 its reverse (303106132), we get a palindrome (534707435).

The spelling of 231601303 in words is "two hundred thirty-one million, six hundred one thousand, three hundred three".