201213231030 has 96 divisors (see below), whose sum is σ = 624171696480. Its totient is φ = 45991592640.

The previous prime is 201213231029. The next prime is 201213231097. The reversal of 201213231030 is 30132312102.

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

It is a junction number, because it is equal to n+sod(n) for n = 201213230994 and 201213231012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7591201 + ... + 7617660.

It is an arithmetic number, because the mean of its divisors is an integer number (6501788505).

Almost surely, 2^201213231030 is an apocalyptic number.

201213231030 is an abundant number, since it is smaller than the sum of its proper divisors (422958465450).

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

201213231030 is a wasteful number, since it uses less digits than its factorization.

201213231030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15208891 (or 15208878 counting only the distinct ones).

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

Adding to 201213231030 its reverse (30132312102), we get a palindrome (231345543132).

The spelling of 201213231030 in words is "two hundred one billion, two hundred thirteen million, two hundred thirty-one thousand, thirty".