21113120230003 has 4 divisors (see below), whose sum is σ = 21330781263400. Its totient is φ = 20895459196608.

The previous prime is 21113120229953. The next prime is 21113120230049. The reversal of 21113120230003 is 30003202131112.

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 21113120230003 - 2¹³ = 21113120221811 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21113120236003) 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, 108830516553 + ... + 108830516746.

It is an arithmetic number, because the mean of its divisors is an integer number (5332695315850).

Almost surely, 2^{21113120230003} is an apocalyptic number.

21113120230003 is a deficient number, since it is larger than the sum of its proper divisors (217661033397).

21113120230003 is an equidigital number, since it uses as much as digits as its factorization.

21113120230003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217661033396.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 21113120230003 its reverse (30003202131112), we get a palindrome (51116322361115).

The spelling of 21113120230003 in words is "twenty-one trillion, one hundred thirteen billion, one hundred twenty million, two hundred thirty thousand, three".