1142143223 has 8 divisors (see below), whose sum is σ = 1283479008. Its totient is φ = 1008447264.

The previous prime is 1142143217. The next prime is 1142143231. The reversal of 1142143223 is 3223412411.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1142143223 - 2⁶ = 1142143159 is a prime.

It is a super-2 number, since 2×1142143223² = 2608982283689655458, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1142143243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1909640 + ... + 1910237.

It is an arithmetic number, because the mean of its divisors is an integer number (160434876).

Almost surely, 2^1142143223 is an apocalyptic number.

1142143223 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1142143223 is a deficient number, since it is larger than the sum of its proper divisors (141335785).

1142143223 is a wasteful number, since it uses less digits than its factorization.

1142143223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3819913.

The product of its digits is 1152, while the sum is 23.

The square root of 1142143223 is about 33795.6095225401. The cubic root of 1142143223 is about 1045.2981675510.

Adding to 1142143223 its reverse (3223412411), we get a palindrome (4365555634).

The spelling of 1142143223 in words is "one billion, one hundred forty-two million, one hundred forty-three thousand, two hundred twenty-three".