1232433211421 has 4 divisors (see below), whose sum is σ = 1232436699072. Its totient is φ = 1232429723772.

The previous prime is 1232433211417. The next prime is 1232433211439. The reversal of 1232433211421 is 1241123342321.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1232433211421 - 2² = 1232433211417 is a prime.

It is a super-3 number, since 3×1232433211421³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1232433211621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1145291 + ... + 1943336.

It is an arithmetic number, because the mean of its divisors is an integer number (308109174768).

Almost surely, 2^{1232433211421} is an apocalyptic number.

It is an amenable number.

1232433211421 is a deficient number, since it is larger than the sum of its proper divisors (3487651).

1232433211421 is an equidigital number, since it uses as much as digits as its factorization.

1232433211421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3487650.

The product of its digits is 6912, while the sum is 29.

Adding to 1232433211421 its reverse (1241123342321), we get a palindrome (2473556553742).

The spelling of 1232433211421 in words is "one trillion, two hundred thirty-two billion, four hundred thirty-three million, two hundred eleven thousand, four hundred twenty-one".