1240124332021 has 2 divisors, whose sum is σ = 1240124332022. Its totient is φ = 1240124332020.

The previous prime is 1240124332019. The next prime is 1240124332039. The reversal of 1240124332021 is 1202334210421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1239949060900 + 175271121 = 1113530^2 + 13239^2 .

It is a cyclic number.

It is not a de Polignac number, because 1240124332021 - 2¹ = 1240124332019 is a prime.

Together with 1240124332019, 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 (1240124338021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 620062166010 + 620062166011.

It is an arithmetic number, because the mean of its divisors is an integer number (620062166011).

Almost surely, 2^{1240124332021} is an apocalyptic number.

It is an amenable number.

1240124332021 is a deficient number, since it is larger than the sum of its proper divisors (1).

1240124332021 is an equidigital number, since it uses as much as digits as its factorization.

1240124332021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 1240124332021 its reverse (1202334210421), we get a palindrome (2442458542442).

The spelling of 1240124332021 in words is "one trillion, two hundred forty billion, one hundred twenty-four million, three hundred thirty-two thousand, twenty-one".