11121143242 has 16 divisors (see below), whose sum is σ = 18825760800. Its totient is φ = 4880752240.

The previous prime is 11121143221. The next prime is 11121143269. The reversal of 11121143242 is 24234112111.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8714992 + ... + 8716267.

It is an arithmetic number, because the mean of its divisors is an integer number (1176610050).

Almost surely, 2^11121143242 is an apocalyptic number.

11121143242 is a deficient number, since it is larger than the sum of its proper divisors (7704617558).

11121143242 is a wasteful number, since it uses less digits than its factorization.

11121143242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17431301.

The product of its digits is 384, while the sum is 22.

Adding to 11121143242 its reverse (24234112111), we get a palindrome (35355255353).

The spelling of 11121143242 in words is "eleven billion, one hundred twenty-one million, one hundred forty-three thousand, two hundred forty-two".