11103131142 has 24 divisors (see below), whose sum is σ = 24071706360. Its totient is φ = 3698748000.

The previous prime is 11103131141. The next prime is 11103131183. The reversal of 11103131142 is 24113130111.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11103131141) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 161359 + ... + 219642.

It is an arithmetic number, because the mean of its divisors is an integer number (1002987765).

Almost surely, 2^11103131142 is an apocalyptic number.

11103131142 is an abundant number, since it is smaller than the sum of its proper divisors (12968575218).

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

11103131142 is a wasteful number, since it uses less digits than its factorization.

11103131142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382628 (or 382625 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 11103131142 its reverse (24113130111), we get a palindrome (35216261253).

The spelling of 11103131142 in words is "eleven billion, one hundred three million, one hundred thirty-one thousand, one hundred forty-two".