11005031442 has 16 divisors (see below), whose sum is σ = 22014623520. Its totient is φ = 3667583712.

The previous prime is 11005031393. The next prime is 11005031449. The reversal of 11005031442 is 24413050011.

It is a super-2 number, since 2×11005031442² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11005031449) 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, 158248 + ... + 216915.

It is an arithmetic number, because the mean of its divisors is an integer number (1375913970).

Almost surely, 2^11005031442 is an apocalyptic number.

11005031442 is an abundant number, since it is smaller than the sum of its proper divisors (11009592078).

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

11005031442 is a wasteful number, since it uses less digits than its factorization.

11005031442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380057.

The product of its (nonzero) digits is 480, while the sum is 21.

Adding to 11005031442 its reverse (24413050011), we get a palindrome (35418081453).

The spelling of 11005031442 in words is "eleven billion, five million, thirty-one thousand, four hundred forty-two".