1421233334403 has 4 divisors (see below), whose sum is σ = 1894977779208. Its totient is φ = 947488889600.

The previous prime is 1421233334401. The next prime is 1421233334419. The reversal of 1421233334403 is 3044333321241.

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 1421233334403 - 2¹ = 1421233334401 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1421233334401) 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, 236872222398 + ... + 236872222403.

It is an arithmetic number, because the mean of its divisors is an integer number (473744444802).

Almost surely, 2^{1421233334403} is an apocalyptic number.

1421233334403 is a deficient number, since it is larger than the sum of its proper divisors (473744444805).

1421233334403 is an equidigital number, since it uses as much as digits as its factorization.

1421233334403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 473744444804.

The product of its (nonzero) digits is 62208, while the sum is 33.

Adding to 1421233334403 its reverse (3044333321241), we get a palindrome (4465566655644).

The spelling of 1421233334403 in words is "one trillion, four hundred twenty-one billion, two hundred thirty-three million, three hundred thirty-four thousand, four hundred three".