1242440113112 has 32 divisors (see below), whose sum is σ = 2690846237520. Its totient is φ = 531525181440.

The previous prime is 1242440113111. The next prime is 1242440113151. The reversal of 1242440113112 is 2113110442421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1242440113111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 415252553 + ... + 415255544.

Almost surely, 2^{1242440113112} is an apocalyptic number.

It is an amenable number.

1242440113112 is an abundant number, since it is smaller than the sum of its proper divisors (1448406124408).

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

1242440113112 is a wasteful number, since it uses less digits than its factorization.

1242440113112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 830508131 (or 830508127 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 26.

Adding to 1242440113112 its reverse (2113110442421), we get a palindrome (3355550555533).

The spelling of 1242440113112 in words is "one trillion, two hundred forty-two billion, four hundred forty million, one hundred thirteen thousand, one hundred twelve".