1212330443323 has 4 divisors (see below), whose sum is σ = 1241899478568. Its totient is φ = 1182761408080.

The previous prime is 1212330443273. The next prime is 1212330443327. The reversal of 1212330443323 is 3233440332121.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1212330443323 - 2¹³ = 1212330435131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1212330443327) 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, 14784517561 + ... + 14784517642.

It is an arithmetic number, because the mean of its divisors is an integer number (310474869642).

Almost surely, 2^{1212330443323} is an apocalyptic number.

1212330443323 is a deficient number, since it is larger than the sum of its proper divisors (29569035245).

1212330443323 is an equidigital number, since it uses as much as digits as its factorization.

1212330443323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29569035244.

The product of its (nonzero) digits is 31104, while the sum is 31.

Adding to 1212330443323 its reverse (3233440332121), we get a palindrome (4445770775444).

The spelling of 1212330443323 in words is "one trillion, two hundred twelve billion, three hundred thirty million, four hundred forty-three thousand, three hundred twenty-three".