311012200230 has 128 divisors (see below), whose sum is σ = 790427289600. Its totient is φ = 78101489664.

The previous prime is 311012200141. The next prime is 311012200231. The reversal of 311012200230 is 32002210113.

It is a super-2 number, since 2×311012200230² (a number of 24 digits) contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311012200231) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 95488762 + ... + 95492018.

It is an arithmetic number, because the mean of its divisors is an integer number (6175213200).

Almost surely, 2^311012200230 is an apocalyptic number.

311012200230 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 311012200230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (395213644800).

311012200230 is an abundant number, since it is smaller than the sum of its proper divisors (479415089370).

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

311012200230 is a wasteful number, since it uses less digits than its factorization.

311012200230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4238.

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

Adding to 311012200230 its reverse (32002210113), we get a palindrome (343014410343).

The spelling of 311012200230 in words is "three hundred eleven billion, twelve million, two hundred thousand, two hundred thirty".