121423361 has 2 divisors, whose sum is σ = 121423362. Its totient is φ = 121423360.

The previous prime is 121423349. The next prime is 121423387. The reversal of 121423361 is 163324121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 119683600 + 1739761 = 10940^2 + 1319^2 .

It is a cyclic number.

It is not a de Polignac number, because 121423361 - 2⁶ = 121423297 is a prime.

It is not a weakly prime, because it can be changed into another prime (121423321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60711680 + 60711681.

It is an arithmetic number, because the mean of its divisors is an integer number (60711681).

Almost surely, 2^121423361 is an apocalyptic number.

It is an amenable number.

121423361 is a deficient number, since it is larger than the sum of its proper divisors (1).

121423361 is an equidigital number, since it uses as much as digits as its factorization.

121423361 is an evil number, because the sum of its binary digits is even.

The product of its digits is 864, while the sum is 23.

The square root of 121423361 is about 11019.2268785065. The cubic root of 121423361 is about 495.1849269934.

Adding to 121423361 its reverse (163324121), we get a palindrome (284747482).

The spelling of 121423361 in words is "one hundred twenty-one million, four hundred twenty-three thousand, three hundred sixty-one".