1142113143 has 4 divisors (see below), whose sum is σ = 1522817528. Its totient is φ = 761408760.

The previous prime is 1142113111. The next prime is 1142113163. The reversal of 1142113143 is 3413112411.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1142113143 - 2⁵ = 1142113111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1142113103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 190352188 + ... + 190352193.

It is an arithmetic number, because the mean of its divisors is an integer number (380704382).

Almost surely, 2^1142113143 is an apocalyptic number.

1142113143 is a deficient number, since it is larger than the sum of its proper divisors (380704385).

1142113143 is an equidigital number, since it uses as much as digits as its factorization.

1142113143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380704384.

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

The square root of 1142113143 is about 33795.1644913884. The cubic root of 1142113143 is about 1045.2889909889.

Adding to 1142113143 its reverse (3413112411), we get a palindrome (4555225554).

The spelling of 1142113143 in words is "one billion, one hundred forty-two million, one hundred thirteen thousand, one hundred forty-three".