11142042263 has 24 divisors (see below), whose sum is σ = 13101523200. Its totient is φ = 9391689360.

The previous prime is 11142042251. The next prime is 11142042347. The reversal of 11142042263 is 36224024111.

It is a de Polignac number, because none of the positive numbers 2^k-11142042263 is a prime.

It is a super-2 number, since 2×11142042263² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11142045263) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 156788 + ... + 216486.

It is an arithmetic number, because the mean of its divisors is an integer number (545896800).

Almost surely, 2^11142042263 is an apocalyptic number.

11142042263 is a deficient number, since it is larger than the sum of its proper divisors (1959480937).

11142042263 is a wasteful number, since it uses less digits than its factorization.

11142042263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59795 (or 59776 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 11142042263 its reverse (36224024111), we get a palindrome (47366066374).

The spelling of 11142042263 in words is "eleven billion, one hundred forty-two million, forty-two thousand, two hundred sixty-three".