230201021321 has 2 divisors, whose sum is σ = 230201021322. Its totient is φ = 230201021320.

The previous prime is 230201021269. The next prime is 230201021329. The reversal of 230201021321 is 123120102032.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 229023502096 + 1177519225 = 478564^2 + 34315^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-230201021321 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 230201021321.

It is not a weakly prime, because it can be changed into another prime (230201021329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115100510660 + 115100510661.

It is an arithmetic number, because the mean of its divisors is an integer number (115100510661).

Almost surely, 2^230201021321 is an apocalyptic number.

It is an amenable number.

230201021321 is a deficient number, since it is larger than the sum of its proper divisors (1).

230201021321 is an equidigital number, since it uses as much as digits as its factorization.

230201021321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 230201021321 its reverse (123120102032), we get a palindrome (353321123353).

The spelling of 230201021321 in words is "two hundred thirty billion, two hundred one million, twenty-one thousand, three hundred twenty-one".