201123404330 has 32 divisors (see below), whose sum is σ = 383343763536. Its totient is φ = 75711867904.

The previous prime is 201123404309. The next prime is 201123404357. The reversal of 201123404330 is 33404321102.

It can be written as a sum of positive squares in 8 ways, for example, as 24371268769 + 176752135561 = 156113^2 + 420419^2 .

It is a junction number, because it is equal to n+sod(n) for n = 201123404296 and 201123404305.

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, 3225812 + ... + 3287568.

Almost surely, 2^201123404330 is an apocalyptic number.

201123404330 is a deficient number, since it is larger than the sum of its proper divisors (182220359206).

201123404330 is a wasteful number, since it uses less digits than its factorization.

201123404330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80938.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 201123404330 its reverse (33404321102), we get a palindrome (234527725432).

The spelling of 201123404330 in words is "two hundred one billion, one hundred twenty-three million, four hundred four thousand, three hundred thirty".