1142111433 has 8 divisors (see below), whose sum is σ = 1558229728. Its totient is φ = 743700384.

The previous prime is 1142111429. The next prime is 1142111491. The reversal of 1142111433 is 3341112411.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1142111433 - 2² = 1142111429 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1142111933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4426660 + ... + 4426917.

It is an arithmetic number, because the mean of its divisors is an integer number (194778716).

Almost surely, 2^1142111433 is an apocalyptic number.

It is an amenable number.

1142111433 is a deficient number, since it is larger than the sum of its proper divisors (416118295).

1142111433 is an equidigital number, since it uses as much as digits as its factorization.

1142111433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8853623.

The product of its digits is 288, while the sum is 21.

The square root of 1142111433 is about 33795.1391919015. The cubic root of 1142111433 is about 1045.2884693111.

Adding to 1142111433 its reverse (3341112411), we get a palindrome (4483223844).

It can be divided in two parts, 1142 and 111433, that added together give a triangular number (112575 = T₄₇₄).

The spelling of 1142111433 in words is "one billion, one hundred forty-two million, one hundred eleven thousand, four hundred thirty-three".