11311042242 has 128 divisors (see below), whose sum is σ = 25323522048. Its totient is φ = 3353011200.

The previous prime is 11311042229. The next prime is 11311042271. The reversal of 11311042242 is 24224011311.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 17925267 + ... + 17925897.

It is an arithmetic number, because the mean of its divisors is an integer number (197840016).

Almost surely, 2^11311042242 is an apocalyptic number.

11311042242 is an abundant number, since it is smaller than the sum of its proper divisors (14012479806).

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

11311042242 is a wasteful number, since it uses less digits than its factorization.

11311042242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 824.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 11311042242 its reverse (24224011311), we get a palindrome (35535053553).

The spelling of 11311042242 in words is "eleven billion, three hundred eleven million, forty-two thousand, two hundred forty-two".