121223102389 has 2 divisors, whose sum is σ = 121223102390. Its totient is φ = 121223102388.

The previous prime is 121223102293. The next prime is 121223102411. The reversal of 121223102389 is 983201322121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 120749300100 + 473802289 = 347490^2 + 21767^2 .

It is a cyclic number.

It is not a de Polignac number, because 121223102389 - 2⁹ = 121223101877 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121223102089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60611551194 + 60611551195.

It is an arithmetic number, because the mean of its divisors is an integer number (60611551195).

Almost surely, 2^121223102389 is an apocalyptic number.

It is an amenable number.

121223102389 is a deficient number, since it is larger than the sum of its proper divisors (1).

121223102389 is an equidigital number, since it uses as much as digits as its factorization.

121223102389 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 34.

The spelling of 121223102389 in words is "one hundred twenty-one billion, two hundred twenty-three million, one hundred two thousand, three hundred eighty-nine".