1140232123 has 8 divisors (see below), whose sum is σ = 1205536320. Its totient is φ = 1075457160.

The previous prime is 1140232091. The next prime is 1140232129. The reversal of 1140232123 is 3212320411.

It is a happy number.

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 1140232123 - 2⁵ = 1140232091 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a self number, because there is not a number n which added to its sum of digits gives 1140232123.

It is not an unprimeable number, because it can be changed into a prime (1140232129) 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, 127873 + ... + 136498.

It is an arithmetic number, because the mean of its divisors is an integer number (150692040).

Almost surely, 2^1140232123 is an apocalyptic number.

1140232123 is a deficient number, since it is larger than the sum of its proper divisors (65304197).

1140232123 is a wasteful number, since it uses less digits than its factorization.

1140232123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264617.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 1140232123 is about 33767.3233022696. The cubic root of 1140232123 is about 1044.7148243153.

Adding to 1140232123 its reverse (3212320411), we get a palindrome (4352552534).

The spelling of 1140232123 in words is "one billion, one hundred forty million, two hundred thirty-two thousand, one hundred twenty-three".