1240321042242 has 24 divisors (see below), whose sum is σ = 2687603518080. Its totient is φ = 413403230520.

The previous prime is 1240321042241. The next prime is 1240321042249. The reversal of 1240321042242 is 2422401230421.

It is a happy number.

1240321042242 is a `hidden beast` number, since 1 + 2 + 403 + 2 + 10 + 4 + 2 + 242 = 666.

It is a super-2 number, since 2×1240321042242² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1240321042241) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2886634 + ... + 3288357.

It is an arithmetic number, because the mean of its divisors is an integer number (111983479920).

Almost surely, 2^{1240321042242} is an apocalyptic number.

1240321042242 is an abundant number, since it is smaller than the sum of its proper divisors (1447282475838).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1240321042242 is a wasteful number, since it uses less digits than its factorization.

1240321042242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6186158 (or 6186155 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

Adding to 1240321042242 its reverse (2422401230421), we get a palindrome (3662722272663).

The spelling of 1240321042242 in words is "one trillion, two hundred forty billion, three hundred twenty-one million, forty-two thousand, two hundred forty-two".