1140023403521 has 8 divisors (see below), whose sum is σ = 1153601602944. Its totient is φ = 1126482456960.

The previous prime is 1140023403517. The next prime is 1140023403599. The reversal of 1140023403521 is 1253043200411.

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 1140023403521 - 2² = 1140023403517 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1140023403511) 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, 9251645 + ... + 9374058.

It is an arithmetic number, because the mean of its divisors is an integer number (144200200368).

Almost surely, 2^{1140023403521} is an apocalyptic number.

It is an amenable number.

1140023403521 is a deficient number, since it is larger than the sum of its proper divisors (13578199423).

1140023403521 is an equidigital number, since it uses as much as digits as its factorization.

1140023403521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18626431.

The product of its (nonzero) digits is 2880, while the sum is 26.

Adding to 1140023403521 its reverse (1253043200411), we get a palindrome (2393066603932).

The spelling of 1140023403521 in words is "one trillion, one hundred forty billion, twenty-three million, four hundred three thousand, five hundred twenty-one".