1242401112 has 32 divisors (see below), whose sum is σ = 3451114800. Its totient is φ = 414133632.

The previous prime is 1242401081. The next prime is 1242401113. The reversal of 1242401112 is 2111042421.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1242401113) 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, 2875713 + ... + 2876144.

Almost surely, 2^1242401112 is an apocalyptic number.

1242401112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1242401112 is an abundant number, since it is smaller than the sum of its proper divisors (2208713688).

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

1242401112 is a wasteful number, since it uses less digits than its factorization.

1242401112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5751872 (or 5751862 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

The square root of 1242401112 is about 35247.7107341739. The cubic root of 1242401112 is about 1075.0300657176.

Adding to 1242401112 its reverse (2111042421), we get a palindrome (3353443533).

The spelling of 1242401112 in words is "one billion, two hundred forty-two million, four hundred one thousand, one hundred twelve".