1240120241 has 2 divisors, whose sum is σ = 1240120242. Its totient is φ = 1240120240.

The previous prime is 1240120237. The next prime is 1240120283. The reversal of 1240120241 is 1420210421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 894309025 + 345811216 = 29905^2 + 18596^2 .

It is a cyclic number.

It is not a de Polignac number, because 1240120241 - 2² = 1240120237 is a prime.

It is not a weakly prime, because it can be changed into another prime (1240120201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 620060120 + 620060121.

It is an arithmetic number, because the mean of its divisors is an integer number (620060121).

Almost surely, 2^1240120241 is an apocalyptic number.

It is an amenable number.

1240120241 is a deficient number, since it is larger than the sum of its proper divisors (1).

1240120241 is an equidigital number, since it uses as much as digits as its factorization.

1240120241 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 1240120241 is about 35215.3409894040. The cubic root of 1240120241 is about 1074.3717955020.

Adding to 1240120241 its reverse (1420210421), we get a palindrome (2660330662).

The spelling of 1240120241 in words is "one billion, two hundred forty million, one hundred twenty thousand, two hundred forty-one".