201021230031223 has 4 divisors (see below), whose sum is σ = 229738548607120. Its totient is φ = 172303911455328.

The previous prime is 201021230031203. The next prime is 201021230031277. The reversal of 201021230031223 is 322130032120102.

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 201021230031223 - 2³⁷ = 200883791077751 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 201021230031194 and 201021230031203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201021230031203) 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, 14358659287938 + ... + 14358659287951.

It is an arithmetic number, because the mean of its divisors is an integer number (57434637151780).

Almost surely, 2^{201021230031223} is an apocalyptic number.

201021230031223 is a deficient number, since it is larger than the sum of its proper divisors (28717318575897).

201021230031223 is an equidigital number, since it uses as much as digits as its factorization.

201021230031223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28717318575896.

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

Adding to 201021230031223 its reverse (322130032120102), we get a palindrome (523151262151325).

The spelling of 201021230031223 in words is "two hundred one trillion, twenty-one billion, two hundred thirty million, thirty-one thousand, two hundred twenty-three".