1143323101 has 4 divisors (see below), whose sum is σ = 1143391104. Its totient is φ = 1143255100.

The previous prime is 1143323053. The next prime is 1143323143. The reversal of 1143323101 is 1013233411.

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, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 1013233411 = 139 ⋅7289449.

It is a cyclic number.

It is not a de Polignac number, because 1143323101 - 2⁹ = 1143322589 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 (1143323161) 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, 11646 + ... + 49216.

It is an arithmetic number, because the mean of its divisors is an integer number (285847776).

Almost surely, 2^1143323101 is an apocalyptic number.

It is an amenable number.

1143323101 is a deficient number, since it is larger than the sum of its proper divisors (68003).

1143323101 is an equidigital number, since it uses as much as digits as its factorization.

1143323101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68002.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 1143323101 is about 33813.0611007049. The cubic root of 1143323101 is about 1045.6579881175.

Adding to 1143323101 its reverse (1013233411), we get a palindrome (2156556512).

The spelling of 1143323101 in words is "one billion, one hundred forty-three million, three hundred twenty-three thousand, one hundred one".