11040031242 has 20 divisors (see below), whose sum is σ = 24737848146. Its totient is φ = 3680010360.

The previous prime is 11040031241. The next prime is 11040031279. The reversal of 11040031242 is 24213004011.

It can be written as a sum of positive squares in only one way, i.e., 10901239281 + 138791961 = 104409^2 + 11781^2 .

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

It is not an unprimeable number, because it can be changed into a prime (11040031241) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 34074009 + ... + 34074332.

Almost surely, 2^11040031242 is an apocalyptic number.

11040031242 is an abundant number, since it is smaller than the sum of its proper divisors (13697816904).

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

11040031242 is an equidigital number, since it uses as much as digits as its factorization.

11040031242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68148355 (or 68148346 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 11040031242 its reverse (24213004011), we get a palindrome (35253035253).

The spelling of 11040031242 in words is "eleven billion, forty million, thirty-one thousand, two hundred forty-two".