20230515011321 has 2 divisors, whose sum is σ = 20230515011322. Its totient is φ = 20230515011320.

The previous prime is 20230515011269. The next prime is 20230515011363. The reversal of 20230515011321 is 12311051503202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12992881630096 + 7237633381225 = 3604564^2 + 2690285^2 .

It is a cyclic number.

It is not a de Polignac number, because 20230515011321 - 2⁶ = 20230515011257 is a prime.

It is not a weakly prime, because it can be changed into another prime (20230515001321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10115257505660 + 10115257505661.

It is an arithmetic number, because the mean of its divisors is an integer number (10115257505661).

Almost surely, 2^{20230515011321} is an apocalyptic number.

It is an amenable number.

20230515011321 is a deficient number, since it is larger than the sum of its proper divisors (1).

20230515011321 is an equidigital number, since it uses as much as digits as its factorization.

20230515011321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1800, while the sum is 26.

Adding to 20230515011321 its reverse (12311051503202), we get a palindrome (32541566514523).

The spelling of 20230515011321 in words is "twenty trillion, two hundred thirty billion, five hundred fifteen million, eleven thousand, three hundred twenty-one".