18209293021203 has 8 divisors (see below), whose sum is σ = 24310961513616. Its totient is φ = 12123576604800.

The previous prime is 18209293021177. The next prime is 18209293021219. The reversal of 18209293021203 is 30212039290281.

It is a happy number.

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

It is not a de Polignac number, because 18209293021203 - 2¹⁰ = 18209293020179 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18209293021103) 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, 3988016338 + ... + 3988020903.

It is an arithmetic number, because the mean of its divisors is an integer number (3038870189202).

Almost surely, 2^{18209293021203} is an apocalyptic number.

18209293021203 is a deficient number, since it is larger than the sum of its proper divisors (6101668492413).

18209293021203 is an equidigital number, since it uses as much as digits as its factorization.

18209293021203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7976038005.

The product of its (nonzero) digits is 93312, while the sum is 42.

The spelling of 18209293021203 in words is "eighteen trillion, two hundred nine billion, two hundred ninety-three million, twenty-one thousand, two hundred three".