201123323030 has 64 divisors (see below), whose sum is σ = 431314882560. Its totient is φ = 66071376000.

The previous prime is 201123322993. The next prime is 201123323039. The reversal of 201123323030 is 30323321102.

It is a junction number, because it is equal to n+sod(n) for n = 201123322993 and 201123323011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201123323039) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 239660 + ... + 677999.

It is an arithmetic number, because the mean of its divisors is an integer number (6739295040).

Almost surely, 2^201123323030 is an apocalyptic number.

201123323030 is an abundant number, since it is smaller than the sum of its proper divisors (230191559530).

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

201123323030 is a wasteful number, since it uses less digits than its factorization.

201123323030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 917805.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 201123323030 its reverse (30323321102), we get a palindrome (231446644132).

The spelling of 201123323030 in words is "two hundred one billion, one hundred twenty-three million, three hundred twenty-three thousand, thirty".