1212323323 has 4 divisors (see below), whose sum is σ = 1218415600. Its totient is φ = 1206231048.

The previous prime is 1212323317. The next prime is 1212323369. The reversal of 1212323323 is 3233232121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1212323323 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1212323294 and 1212323303.

It is not an unprimeable number, because it can be changed into a prime (1212323303) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3045840 + ... + 3046237.

It is an arithmetic number, because the mean of its divisors is an integer number (304603900).

Almost surely, 2^1212323323 is an apocalyptic number.

1212323323 is a deficient number, since it is larger than the sum of its proper divisors (6092277).

1212323323 is an equidigital number, since it uses as much as digits as its factorization.

1212323323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6092276.

The product of its digits is 1296, while the sum is 22.

The square root of 1212323323 is about 34818.4336666657. The cubic root of 1212323323 is about 1066.2838222535.

Adding to 1212323323 its reverse (3233232121), we get a palindrome (4445555444).

The spelling of 1212323323 in words is "one billion, two hundred twelve million, three hundred twenty-three thousand, three hundred twenty-three".