1211332323 has 8 divisors (see below), whose sum is σ = 1615418368. Its totient is φ = 807400584.

The previous prime is 1211332321. The next prime is 1211332361. The reversal of 1211332323 is 3232331121.

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

It is not a de Polignac number, because 1211332323 - 2¹ = 1211332321 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1211332323.

It is not an unprimeable number, because it can be changed into a prime (1211332321) 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, 18811 + ... + 52692.

It is an arithmetic number, because the mean of its divisors is an integer number (201927296).

Almost surely, 2^1211332323 is an apocalyptic number.

1211332323 is a deficient number, since it is larger than the sum of its proper divisors (404086045).

1211332323 is an equidigital number, since it uses as much as digits as its factorization.

1211332323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77153.

The product of its digits is 648, while the sum is 21.

The square root of 1211332323 is about 34804.1997896806. The cubic root of 1211332323 is about 1065.9932024976.

Adding to 1211332323 its reverse (3232331121), we get a palindrome (4443663444).

The spelling of 1211332323 in words is "one billion, two hundred eleven million, three hundred thirty-two thousand, three hundred twenty-three".