223121300989 has 2 divisors, whose sum is σ = 223121300990. Its totient is φ = 223121300988.

The previous prime is 223121300939. The next prime is 223121300999. The reversal of 223121300989 is 989003121322.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 211448227225 + 11673073764 = 459835^2 + 108042^2 .

It is a cyclic number.

It is not a de Polignac number, because 223121300989 - 2⁷ = 223121300861 is a prime.

It is a super-3 number, since 3×223121300989³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (223121300929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111560650494 + 111560650495.

It is an arithmetic number, because the mean of its divisors is an integer number (111560650495).

Almost surely, 2^223121300989 is an apocalyptic number.

It is an amenable number.

223121300989 is a deficient number, since it is larger than the sum of its proper divisors (1).

223121300989 is an equidigital number, since it uses as much as digits as its factorization.

223121300989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46656, while the sum is 40.

The spelling of 223121300989 in words is "two hundred twenty-three billion, one hundred twenty-one million, three hundred thousand, nine hundred eighty-nine".