12021000023203 has 8 divisors (see below), whose sum is σ = 12347403906272. Its totient is φ = 11694675718656.

The previous prime is 12021000023173. The next prime is 12021000023237. The reversal of 12021000023203 is 30232000012021.

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 12021000023203 - 2²¹ = 12020997926051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12021000023273) 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, 19588350 + ... + 20192707.

It is an arithmetic number, because the mean of its divisors is an integer number (1543425488284).

Almost surely, 2^{12021000023203} is an apocalyptic number.

12021000023203 is a deficient number, since it is larger than the sum of its proper divisors (326403883069).

12021000023203 is an equidigital number, since it uses as much as digits as its factorization.

12021000023203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39789261.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 12021000023203 its reverse (30232000012021), we get a palindrome (42253000035224).

The spelling of 12021000023203 in words is "twelve trillion, twenty-one billion, twenty-three thousand, two hundred three".