1140323443 has 6 divisors (see below), whose sum is σ = 1326498756. Its totient is φ = 977420052.

The previous prime is 1140323419. The next prime is 1140323497. The reversal of 1140323443 is 3443230411.

It is not a de Polignac number, because 1140323443 - 2⁵ = 1140323411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1140323843) 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, 11635905 + ... + 11636002.

It is an arithmetic number, because the mean of its divisors is an integer number (221083126).

Almost surely, 2^1140323443 is an apocalyptic number.

1140323443 is a deficient number, since it is larger than the sum of its proper divisors (186175313).

1140323443 is an equidigital number, since it uses as much as digits as its factorization.

1140323443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23271921 (or 23271914 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 1140323443 is about 33768.6754700270. The cubic root of 1140323443 is about 1044.7427136105.

Adding to 1140323443 its reverse (3443230411), we get a palindrome (4583553854).

The spelling of 1140323443 in words is "one billion, one hundred forty million, three hundred twenty-three thousand, four hundred forty-three".