1143200231 has 8 divisors (see below), whose sum is σ = 1160724480. Its totient is φ = 1125752472.

The previous prime is 1143200203. The next prime is 1143200239. The reversal of 1143200231 is 1320023411.

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 1143200231 - 2⁶ = 1143200167 is a prime.

It is a super-2 number, since 2×1143200231² = 2613813536316906722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1143200239) 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, 11366 + ... + 49148.

It is an arithmetic number, because the mean of its divisors is an integer number (145090560).

Almost surely, 2^1143200231 is an apocalyptic number.

1143200231 is a deficient number, since it is larger than the sum of its proper divisors (17524249).

1143200231 is an equidigital number, since it uses as much as digits as its factorization.

1143200231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38245.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1143200231 is about 33811.2441504302. The cubic root of 1143200231 is about 1045.6205287153.

Adding to 1143200231 its reverse (1320023411), we get a palindrome (2463223642).

The spelling of 1143200231 in words is "one billion, one hundred forty-three million, two hundred thousand, two hundred thirty-one".