1211031323 has 8 divisors (see below), whose sum is σ = 1231742400. Its totient is φ = 1190488320.

The previous prime is 1211031307. The next prime is 1211031331. The reversal of 1211031323 is 3231301121.

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 1211031323 - 2⁴ = 1211031307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1211031223) 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, 27443 + ... + 56348.

It is an arithmetic number, because the mean of its divisors is an integer number (153967800).

Almost surely, 2^1211031323 is an apocalyptic number.

1211031323 is a deficient number, since it is larger than the sum of its proper divisors (20711077).

1211031323 is an equidigital number, since it uses as much as digits as its factorization.

1211031323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84037.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 1211031323 is about 34799.8753302365. The cubic root of 1211031323 is about 1065.9049001305.

Adding to 1211031323 its reverse (3231301121), we get a palindrome (4442332444).

The spelling of 1211031323 in words is "one billion, two hundred eleven million, thirty-one thousand, three hundred twenty-three".