1142111304 has 48 divisors (see below), whose sum is σ = 3165162000. Its totient is φ = 371849184.

The previous prime is 1142111303. The next prime is 1142111309. The reversal of 1142111304 is 4031112411.

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 (1142111303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 181354 + ... + 187545.

It is an arithmetic number, because the mean of its divisors is an integer number (65940875).

Almost surely, 2^1142111304 is an apocalyptic number.

It is an amenable number.

1142111304 is an abundant number, since it is smaller than the sum of its proper divisors (2023050696).

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

1142111304 is a wasteful number, since it uses less digits than its factorization.

1142111304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 368954 (or 368947 counting only the distinct ones).

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

The square root of 1142111304 is about 33795.1372833430. The cubic root of 1142111304 is about 1045.2884299565.

Adding to 1142111304 its reverse (4031112411), we get a palindrome (5173223715).

The spelling of 1142111304 in words is "one billion, one hundred forty-two million, one hundred eleven thousand, three hundred four".