1213032233423 has 4 divisors (see below), whose sum is σ = 1221886483440. Its totient is φ = 1204177983408.

The previous prime is 1213032233419. The next prime is 1213032233429. The reversal of 1213032233423 is 3243322303121.

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 1213032233423 - 2² = 1213032233419 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213032233429) 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, 4427124803 + ... + 4427125076.

It is an arithmetic number, because the mean of its divisors is an integer number (305471620860).

Almost surely, 2^{1213032233423} is an apocalyptic number.

1213032233423 is a deficient number, since it is larger than the sum of its proper divisors (8854250017).

1213032233423 is an equidigital number, since it uses as much as digits as its factorization.

1213032233423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8854250016.

The product of its (nonzero) digits is 15552, while the sum is 29.

Adding to 1213032233423 its reverse (3243322303121), we get a palindrome (4456354536544).

The spelling of 1213032233423 in words is "one trillion, two hundred thirteen billion, thirty-two million, two hundred thirty-three thousand, four hundred twenty-three".