1233712143 has 6 divisors (see below), whose sum is σ = 1782028664. Its totient is φ = 822474756.

The previous prime is 1233712133. The next prime is 1233712159. The reversal of 1233712143 is 3412173321.

It is a happy number.

It is not a de Polignac number, because 1233712143 - 2¹⁴ = 1233695759 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 (1233712133) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 68539555 + ... + 68539572.

Almost surely, 2^1233712143 is an apocalyptic number.

1233712143 is a deficient number, since it is larger than the sum of its proper divisors (548316521).

1233712143 is a wasteful number, since it uses less digits than its factorization.

1233712143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137079133 (or 137079130 counting only the distinct ones).

The product of its digits is 3024, while the sum is 27.

The square root of 1233712143 is about 35124.2386821409. The cubic root of 1233712143 is about 1072.5180579547.

Adding to 1233712143 its reverse (3412173321), we get a palindrome (4645885464).

The spelling of 1233712143 in words is "one billion, two hundred thirty-three million, seven hundred twelve thousand, one hundred forty-three".