123221941 has 2 divisors, whose sum is σ = 123221942. Its totient is φ = 123221940.

The previous prime is 123221939. The next prime is 123221963. The reversal of 123221941 is 149122321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 114041041 + 9180900 = 10679^2 + 3030^2 .

It is a cyclic number.

It is not a de Polignac number, because 123221941 - 2¹ = 123221939 is a prime.

Together with 123221939, 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 (123221981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61610970 + 61610971.

It is an arithmetic number, because the mean of its divisors is an integer number (61610971).

Almost surely, 2^123221941 is an apocalyptic number.

It is an amenable number.

123221941 is a deficient number, since it is larger than the sum of its proper divisors (1).

123221941 is an equidigital number, since it uses as much as digits as its factorization.

123221941 is an evil number, because the sum of its binary digits is even.

The product of its digits is 864, while the sum is 25.

The square root of 123221941 is about 11100.5378698512. The cubic root of 123221941 is about 497.6179241178.

The spelling of 123221941 in words is "one hundred twenty-three million, two hundred twenty-one thousand, nine hundred forty-one".