1143321015 has 8 divisors (see below), whose sum is σ = 1829313648. Its totient is φ = 609771200.

The previous prime is 1143320989. The next prime is 1143321059. The reversal of 1143321015 is 5101233411.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1143321015 - 2⁷ = 1143320887 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1143320982 and 1143321000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38110686 + ... + 38110715.

It is an arithmetic number, because the mean of its divisors is an integer number (228664206).

Almost surely, 2^1143321015 is an apocalyptic number.

1143321015 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1143321015 is a deficient number, since it is larger than the sum of its proper divisors (685992633).

1143321015 is an equidigital number, since it uses as much as digits as its factorization.

1143321015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76221409.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 1143321015 is about 33813.0302546223. The cubic root of 1143321015 is about 1045.6573521806.

Adding to 1143321015 its reverse (5101233411), we get a palindrome (6244554426).

The spelling of 1143321015 in words is "one billion, one hundred forty-three million, three hundred twenty-one thousand, fifteen".