102323122021 has 2 divisors, whose sum is σ = 102323122022. Its totient is φ = 102323122020.

The previous prime is 102323121991. The next prime is 102323122049. The reversal of 102323122021 is 120221323201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 102316816900 + 6305121 = 319870^2 + 2511^2 .

It is a cyclic number.

It is not a de Polignac number, because 102323122021 - 2¹³ = 102323113829 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 102323122021.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102323129021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51161561010 + 51161561011.

It is an arithmetic number, because the mean of its divisors is an integer number (51161561011).

Almost surely, 2^102323122021 is an apocalyptic number.

It is an amenable number.

102323122021 is a deficient number, since it is larger than the sum of its proper divisors (1).

102323122021 is an equidigital number, since it uses as much as digits as its factorization.

102323122021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 102323122021 its reverse (120221323201), we get a palindrome (222544445222).

The spelling of 102323122021 in words is "one hundred two billion, three hundred twenty-three million, one hundred twenty-two thousand, twenty-one".