230033021 has 2 divisors, whose sum is σ = 230033022. Its totient is φ = 230033020.

The previous prime is 230032991. The next prime is 230033029. The reversal of 230033021 is 120330032.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 174530521 + 55502500 = 13211^2 + 7450^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-230033021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 230032987 and 230033005.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (230033029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115016510 + 115016511.

It is an arithmetic number, because the mean of its divisors is an integer number (115016511).

Almost surely, 2^230033021 is an apocalyptic number.

It is an amenable number.

230033021 is a deficient number, since it is larger than the sum of its proper divisors (1).

230033021 is an equidigital number, since it uses as much as digits as its factorization.

230033021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 14.

The square root of 230033021 is about 15166.8395191615. The cubic root of 230033021 is about 612.7218874549.

Adding to 230033021 its reverse (120330032), we get a palindrome (350363053).

The spelling of 230033021 in words is "two hundred thirty million, thirty-three thousand, twenty-one".