23211210320203 has 4 divisors (see below), whose sum is σ = 23211241043760. Its totient is φ = 23211179596648.

The previous prime is 23211210320191. The next prime is 23211210320209. The reversal of 23211210320203 is 30202301211232.

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 23211210320203 - 2³⁷ = 23073771366731 is a prime.

It is a super-2 number, since 2×23211210320203² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23211210320209) 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, 14199223 + ... + 15749296.

It is an arithmetic number, because the mean of its divisors is an integer number (5802810260940).

Almost surely, 2^{23211210320203} is an apocalyptic number.

23211210320203 is a deficient number, since it is larger than the sum of its proper divisors (30723557).

23211210320203 is an equidigital number, since it uses as much as digits as its factorization.

23211210320203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30723556.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 23211210320203 its reverse (30202301211232), we get a palindrome (53413511531435).

The spelling of 23211210320203 in words is "twenty-three trillion, two hundred eleven billion, two hundred ten million, three hundred twenty thousand, two hundred three".