201212331030 has 48 divisors (see below), whose sum is σ = 535911876864. Its totient is φ = 52347922560.

The previous prime is 201212331017. The next prime is 201212331049. The reversal of 201212331030 is 30133212102.

201212331030 is a `hidden beast` number, since 201 + 2 + 123 + 310 + 30 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 201212330994 and 201212331012.

It is a congruent number.

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, 27260854 + ... + 27268233.

It is an arithmetic number, because the mean of its divisors is an integer number (11164830768).

Almost surely, 2^201212331030 is an apocalyptic number.

201212331030 is an abundant number, since it is smaller than the sum of its proper divisors (334699545834).

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

201212331030 is a wasteful number, since it uses less digits than its factorization.

201212331030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54529141 (or 54529138 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 201212331030 its reverse (30133212102), we get a palindrome (231345543132).

The spelling of 201212331030 in words is "two hundred one billion, two hundred twelve million, three hundred thirty-one thousand, thirty".