202123203112230 has 32 divisors (see below), whose sum is σ = 485416730389248. Its totient is φ = 53863849394400.

The previous prime is 202123203112177. The next prime is 202123203112253. The reversal of 202123203112230 is 32211302321202.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 202123203112230.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2229418636 + ... + 2229509295.

It is an arithmetic number, because the mean of its divisors is an integer number (15169272824664).

Almost surely, 2^{202123203112230} is an apocalyptic number.

202123203112230 is an abundant number, since it is smaller than the sum of its proper divisors (283293527277018).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

202123203112230 is a wasteful number, since it uses less digits than its factorization.

202123203112230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4458929452.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 202123203112230 its reverse (32211302321202), we get a palindrome (234334505433432).

The spelling of 202123203112230 in words is "two hundred two trillion, one hundred twenty-three billion, two hundred three million, one hundred twelve thousand, two hundred thirty".