1143142301 has 4 divisors (see below), whose sum is σ = 1306448352. Its totient is φ = 979836252.

The previous prime is 1143142283. The next prime is 1143142303. The reversal of 1143142301 is 1032413411.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1143142301 - 2¹⁸ = 1142880157 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 (1143142303) 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, 81653015 + ... + 81653028.

It is an arithmetic number, because the mean of its divisors is an integer number (326612088).

Almost surely, 2^1143142301 is an apocalyptic number.

It is an amenable number.

1143142301 is a deficient number, since it is larger than the sum of its proper divisors (163306051).

1143142301 is an equidigital number, since it uses as much as digits as its factorization.

1143142301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163306050.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 1143142301 is about 33810.3874718998. The cubic root of 1143142301 is about 1045.6028666532.

Adding to 1143142301 its reverse (1032413411), we get a palindrome (2175555712).

The spelling of 1143142301 in words is "one billion, one hundred forty-three million, one hundred forty-two thousand, three hundred one".