201230021310 has 64 divisors (see below), whose sum is σ = 499286882304. Its totient is φ = 51851606400.

The previous prime is 201230021297. The next prime is 201230021327. The reversal of 201230021310 is 13120032102.

It is a super-2 number, since 2×201230021310² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 201230021310.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 451057 + ... + 778403.

It is an arithmetic number, because the mean of its divisors is an integer number (7801357536).

Almost surely, 2^201230021310 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 201230021310, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (249643441152).

201230021310 is an abundant number, since it is smaller than the sum of its proper divisors (298056860994).

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

201230021310 is a wasteful number, since it uses less digits than its factorization.

201230021310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328049.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 201230021310 its reverse (13120032102), we get a palindrome (214350053412).

The spelling of 201230021310 in words is "two hundred one billion, two hundred thirty million, twenty-one thousand, three hundred ten".