1140020423 has 8 divisors (see below), whose sum is σ = 1143715296. Its totient is φ = 1136332800.

The previous prime is 1140020417. The next prime is 1140020449. The reversal of 1140020423 is 3240200411.

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 1140020423 - 2⁶ = 1140020359 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 (1140020473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 526463 + ... + 528623.

It is an arithmetic number, because the mean of its divisors is an integer number (142964412).

Almost surely, 2^1140020423 is an apocalyptic number.

1140020423 is a deficient number, since it is larger than the sum of its proper divisors (3694873).

1140020423 is an equidigital number, since it uses as much as digits as its factorization.

1140020423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3625.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 1140020423 is about 33764.1884694420. The cubic root of 1140020423 is about 1044.6501650198.

Adding to 1140020423 its reverse (3240200411), we get a palindrome (4380220834).

The spelling of 1140020423 in words is "one billion, one hundred forty million, twenty thousand, four hundred twenty-three".