21300123311203 has 8 divisors (see below), whose sum is σ = 23462095228416. Its totient is φ = 19175750905800.

The previous prime is 21300123311153. The next prime is 21300123311219. The reversal of 21300123311203 is 30211332100312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21300123311203 - 2⁹ = 21300123310691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21300123311273) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9399876763 + ... + 9399879028.

It is an arithmetic number, because the mean of its divisors is an integer number (2932761903552).

Almost surely, 2^{21300123311203} is an apocalyptic number.

21300123311203 is a deficient number, since it is larger than the sum of its proper divisors (2161971917213).

21300123311203 is a wasteful number, since it uses less digits than its factorization.

21300123311203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18799755905.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 21300123311203 its reverse (30211332100312), we get a palindrome (51511455411515).

The spelling of 21300123311203 in words is "twenty-one trillion, three hundred billion, one hundred twenty-three million, three hundred eleven thousand, two hundred three".