11132121042 has 24 divisors (see below), whose sum is σ = 27565252416. Its totient is φ = 3180605976.

The previous prime is 11132121037. The next prime is 11132121043. The reversal of 11132121042 is 24012123111.

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 (11132121043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 44174958 + ... + 44175209.

It is an arithmetic number, because the mean of its divisors is an integer number (1148552184).

Almost surely, 2^11132121042 is an apocalyptic number.

11132121042 is an abundant number, since it is smaller than the sum of its proper divisors (16433131374).

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

11132121042 is a wasteful number, since it uses less digits than its factorization.

11132121042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88350182 (or 88350179 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 11132121042 its reverse (24012123111), we get a palindrome (35144244153).

The spelling of 11132121042 in words is "eleven billion, one hundred thirty-two million, one hundred twenty-one thousand, forty-two".