1143223123 has 32 divisors (see below), whose sum is σ = 1437782400. Its totient is φ = 886308864.

The previous prime is 1143223099. The next prime is 1143223127. The reversal of 1143223123 is 3213223411.

It is not a de Polignac number, because 1143223123 - 2⁹ = 1143222611 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1143223094 and 1143223103.

It is not an unprimeable number, because it can be changed into a prime (1143223127) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 886263 + ... + 887551.

It is an arithmetic number, because the mean of its divisors is an integer number (44930700).

Almost surely, 2^1143223123 is an apocalyptic number.

1143223123 is a deficient number, since it is larger than the sum of its proper divisors (294559277).

1143223123 is a wasteful number, since it uses less digits than its factorization.

1143223123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1599.

The product of its digits is 864, while the sum is 22.

The square root of 1143223123 is about 33811.5826751721. The cubic root of 1143223123 is about 1045.6275080075.

Adding to 1143223123 its reverse (3213223411), we get a palindrome (4356446534).

The spelling of 1143223123 in words is "one billion, one hundred forty-three million, two hundred twenty-three thousand, one hundred twenty-three".