1200123241 has 2 divisors, whose sum is σ = 1200123242. Its totient is φ = 1200123240.

The previous prime is 1200123173. The next prime is 1200123251. The reversal of 1200123241 is 1423210021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 838971225 + 361152016 = 28965^2 + 19004^2 .

It is an emirp because it is prime and its reverse (1423210021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1200123241 - 2¹⁵ = 1200090473 is a prime.

It is not a weakly prime, because it can be changed into another prime (1200123251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600061620 + 600061621.

It is an arithmetic number, because the mean of its divisors is an integer number (600061621).

Almost surely, 2^1200123241 is an apocalyptic number.

It is an amenable number.

1200123241 is a deficient number, since it is larger than the sum of its proper divisors (1).

1200123241 is an equidigital number, since it uses as much as digits as its factorization.

1200123241 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1200123241 is about 34642.7949363212. The cubic root of 1200123241 is about 1062.6949465775.

Adding to 1200123241 its reverse (1423210021), we get a palindrome (2623333262).

The spelling of 1200123241 in words is "one billion, two hundred million, one hundred twenty-three thousand, two hundred forty-one".