63233231 has 2 divisors, whose sum is σ = 63233232. Its totient is φ = 63233230.

The previous prime is 63233227. The next prime is 63233281. The reversal of 63233231 is 13233236.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 63233231 - 2² = 63233227 is a prime.

It is a super-2 number, since 2×63233231² = 7996883005398722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 63233197 and 63233206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63233221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31616615 + 31616616.

It is an arithmetic number, because the mean of its divisors is an integer number (31616616).

Almost surely, 2^63233231 is an apocalyptic number.

63233231 is a deficient number, since it is larger than the sum of its proper divisors (1).

63233231 is an equidigital number, since it uses as much as digits as its factorization.

63233231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1944, while the sum is 23.

The square root of 63233231 is about 7951.9325324100. The cubic root of 63233231 is about 398.3961422796.

Adding to 63233231 its reverse (13233236), we get a palindrome (76466467).

The spelling of 63233231 in words is "sixty-three million, two hundred thirty-three thousand, two hundred thirty-one".