21232467403 has 4 divisors (see below), whose sum is σ = 24265677040. Its totient is φ = 18199257768.

The previous prime is 21232467391. The next prime is 21232467409. The reversal of 21232467403 is 30476423212.

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 21232467403 - 2⁵ = 21232467371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21232467409) 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, 1516604808 + ... + 1516604821.

It is an arithmetic number, because the mean of its divisors is an integer number (6066419260).

Almost surely, 2^21232467403 is an apocalyptic number.

21232467403 is a deficient number, since it is larger than the sum of its proper divisors (3033209637).

21232467403 is an equidigital number, since it uses as much as digits as its factorization.

21232467403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3033209636.

The product of its (nonzero) digits is 48384, while the sum is 34.

The spelling of 21232467403 in words is "twenty-one billion, two hundred thirty-two million, four hundred sixty-seven thousand, four hundred three".