21332034503 has 24 divisors (see below), whose sum is σ = 25428010608. Its totient is φ = 17726936832.

The previous prime is 21332034491. The next prime is 21332034517. The reversal of 21332034503 is 30543023312.

It is a happy number.

It is not a de Polignac number, because 21332034503 - 2²⁴ = 21315257287 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21332034553) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25676 + ... + 208142.

It is an arithmetic number, because the mean of its divisors is an integer number (1059500442).

Almost surely, 2^21332034503 is an apocalyptic number.

21332034503 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

21332034503 is a deficient number, since it is larger than the sum of its proper divisors (4095976105).

21332034503 is a wasteful number, since it uses less digits than its factorization.

21332034503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182543 (or 182520 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 26.

Adding to 21332034503 its reverse (30543023312), we get a palindrome (51875057815).

The spelling of 21332034503 in words is "twenty-one billion, three hundred thirty-two million, thirty-four thousand, five hundred three".