1243113042 has 16 divisors (see below), whose sum is σ = 2523334752. Its totient is φ = 408186240.

The previous prime is 1243113031. The next prime is 1243113059. The reversal of 1243113042 is 2403113421.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1545759 + ... + 1546562.

It is an arithmetic number, because the mean of its divisors is an integer number (157708422).

Almost surely, 2^1243113042 is an apocalyptic number.

1243113042 is an abundant number, since it is smaller than the sum of its proper divisors (1280221710).

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

1243113042 is a wasteful number, since it uses less digits than its factorization.

1243113042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3092393.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 1243113042 is about 35257.8082415796. The cubic root of 1243113042 is about 1075.2353671042.

Adding to 1243113042 its reverse (2403113421), we get a palindrome (3646226463).

The spelling of 1243113042 in words is "one billion, two hundred forty-three million, one hundred thirteen thousand, forty-two".