1140143311 has 8 divisors (see below), whose sum is σ = 1153656000. Its totient is φ = 1126646400.

The previous prime is 1140143299. The next prime is 1140143339. The reversal of 1140143311 is 1133410411.

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 1140143311 - 2⁷ = 1140143183 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 (1140143351) 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, 206515 + ... + 211963.

It is an arithmetic number, because the mean of its divisors is an integer number (144207000).

Almost surely, 2^1140143311 is an apocalyptic number.

1140143311 is a deficient number, since it is larger than the sum of its proper divisors (13512689).

1140143311 is an equidigital number, since it uses as much as digits as its factorization.

1140143311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7889.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 1140143311 is about 33766.0082183251. The cubic root of 1140143311 is about 1044.6876995395.

Adding to 1140143311 its reverse (1133410411), we get a palindrome (2273553722).

The spelling of 1140143311 in words is "one billion, one hundred forty million, one hundred forty-three thousand, three hundred eleven".