21454300003 has 4 divisors (see below), whose sum is σ = 21500638048. Its totient is φ = 21407961960.

The previous prime is 21454300001. The next prime is 21454300013. The reversal of 21454300003 is 30000345412.

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 21454300003 - 2¹ = 21454300001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21454300001) 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, 23168328 + ... + 23169253.

It is an arithmetic number, because the mean of its divisors is an integer number (5375159512).

Almost surely, 2^21454300003 is an apocalyptic number.

21454300003 is a deficient number, since it is larger than the sum of its proper divisors (46338045).

21454300003 is an equidigital number, since it uses as much as digits as its factorization.

21454300003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46338044.

The product of its (nonzero) digits is 1440, while the sum is 22.

Adding to 21454300003 its reverse (30000345412), we get a palindrome (51454645415).

The spelling of 21454300003 in words is "twenty-one billion, four hundred fifty-four million, three hundred thousand, three".