1140422321 has 4 divisors (see below), whose sum is σ = 1140744192. Its totient is φ = 1140100452.

The previous prime is 1140422293. The next prime is 1140422333. The reversal of 1140422321 is 1232240411.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1140422321 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1140422293 and 1140422302.

It is not an unprimeable number, because it can be changed into a prime (1140422821) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 155561 + ... + 162726.

It is an arithmetic number, because the mean of its divisors is an integer number (285186048).

Almost surely, 2^1140422321 is an apocalyptic number.

It is an amenable number.

1140422321 is a deficient number, since it is larger than the sum of its proper divisors (321871).

1140422321 is an equidigital number, since it uses as much as digits as its factorization.

1140422321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321870.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 1140422321 is about 33770.1394874229. The cubic root of 1140422321 is about 1044.7729094540.

Adding to 1140422321 its reverse (1232240411), we get a palindrome (2372662732).

The spelling of 1140422321 in words is "one billion, one hundred forty million, four hundred twenty-two thousand, three hundred twenty-one".