201231232122330 has 48 divisors (see below), whose sum is σ = 524519090773704. Its totient is φ = 53526493975680.

The previous prime is 201231232122317. The next prime is 201231232122391. The reversal of 201231232122330 is 33221232132102.

201231232122330 is a `hidden beast` number, since 2 + 0 + 1 + 2 + 3 + 1 + 2 + 321 + 2 + 2 + 330 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 201230708307561 + 523814769 = 14185581^2 + 22887^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 201231232122294 and 201231232122303.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2815962481 + ... + 2816033940.

Almost surely, 2^{201231232122330} is an apocalyptic number.

201231232122330 is an abundant number, since it is smaller than the sum of its proper divisors (323287858651374).

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

201231232122330 is a wasteful number, since it uses less digits than its factorization.

201231232122330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5631996831 (or 5631996828 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

Adding to 201231232122330 its reverse (33221232132102), we get a palindrome (234452464254432).

The spelling of 201231232122330 in words is "two hundred one trillion, two hundred thirty-one billion, two hundred thirty-two million, one hundred twenty-two thousand, three hundred thirty".