1140323141 has 4 divisors (see below), whose sum is σ = 1189902432. Its totient is φ = 1090743852.

The previous prime is 1140323131. The next prime is 1140323147. The reversal of 1140323141 is 1413230411.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1413230411 = 4561 ⋅309851.

It is a cyclic number.

It is not a de Polignac number, because 1140323141 - 2²⁶ = 1073214277 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 (1140323147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24789611 + ... + 24789656.

It is an arithmetic number, because the mean of its divisors is an integer number (297475608).

Almost surely, 2^1140323141 is an apocalyptic number.

It is an amenable number.

1140323141 is a deficient number, since it is larger than the sum of its proper divisors (49579291).

1140323141 is an equidigital number, since it uses as much as digits as its factorization.

1140323141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49579290.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 1140323141 is about 33768.6709984269. The cubic root of 1140323141 is about 1044.7426213816.

Adding to 1140323141 its reverse (1413230411), we get a palindrome (2553553552).

The spelling of 1140323141 in words is "one billion, one hundred forty million, three hundred twenty-three thousand, one hundred forty-one".