201243012330 has 32 divisors (see below), whose sum is σ = 483354563328. Its totient is φ = 53623544000.

The previous prime is 201243012323. The next prime is 201243012343. The reversal of 201243012330 is 33210342102.

It is a junction number, because it is equal to n+sod(n) for n = 201243012297 and 201243012306.

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, 2539026 + ... + 2617085.

It is an arithmetic number, because the mean of its divisors is an integer number (15104830104).

Almost surely, 2^201243012330 is an apocalyptic number.

201243012330 is an abundant number, since it is smaller than the sum of its proper divisors (282111550998).

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

201243012330 is a wasteful number, since it uses less digits than its factorization.

201243012330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5157422.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 201243012330 its reverse (33210342102), we get a palindrome (234453354432).

The spelling of 201243012330 in words is "two hundred one billion, two hundred forty-three million, twelve thousand, three hundred thirty".