102323230621 has 2 divisors, whose sum is σ = 102323230622. Its totient is φ = 102323230620.

The previous prime is 102323230619. The next prime is 102323230637. The reversal of 102323230621 is 126032323201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 101640453721 + 682776900 = 318811^2 + 26130^2 .

It is an emirp because it is prime and its reverse (126032323201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 102323230621 - 2¹ = 102323230619 is a prime.

Together with 102323230619, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102323230601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51161615310 + 51161615311.

It is an arithmetic number, because the mean of its divisors is an integer number (51161615311).

Almost surely, 2^102323230621 is an apocalyptic number.

It is an amenable number.

102323230621 is a deficient number, since it is larger than the sum of its proper divisors (1).

102323230621 is an equidigital number, since it uses as much as digits as its factorization.

102323230621 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 102323230621 its reverse (126032323201), we get a palindrome (228355553822).

The spelling of 102323230621 in words is "one hundred two billion, three hundred twenty-three million, two hundred thirty thousand, six hundred twenty-one".