1143132121 has 8 divisors (see below), whose sum is σ = 1182958920. Its totient is φ = 1103332608.

The previous prime is 1143132103. The next prime is 1143132149. The reversal of 1143132121 is 1212313411.

It can be written as a sum of positive squares in 4 ways, for example, as 466560000 + 676572121 = 21600^2 + 26011^2 .

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

It is not a de Polignac number, because 1143132121 - 2⁹ = 1143131609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1143132101) 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, 116415 + ... + 125851.

It is an arithmetic number, because the mean of its divisors is an integer number (147869865).

Almost surely, 2^1143132121 is an apocalyptic number.

It is an amenable number.

1143132121 is a deficient number, since it is larger than the sum of its proper divisors (39826799).

1143132121 is an equidigital number, since it uses as much as digits as its factorization.

1143132121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13643.

The product of its digits is 144, while the sum is 19.

The square root of 1143132121 is about 33810.2369261146. The cubic root of 1143132121 is about 1045.5997628492.

Adding to 1143132121 its reverse (1212313411), we get a palindrome (2355445532).

The spelling of 1143132121 in words is "one billion, one hundred forty-three million, one hundred thirty-two thousand, one hundred twenty-one".