10311230220 has 96 divisors (see below), whose sum is σ = 29686680576. Its totient is φ = 2672524800.

The previous prime is 10311230207. The next prime is 10311230233. The reversal of 10311230220 is 2203211301.

It is an interprime number because it is at equal distance from previous prime (10311230207) and next prime (10311230233).

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 10311230220.

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, 658927 + ... + 674393.

It is an arithmetic number, because the mean of its divisors is an integer number (309236256).

Almost surely, 2^10311230220 is an apocalyptic number.

10311230220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10311230220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14843340288).

10311230220 is an abundant number, since it is smaller than the sum of its proper divisors (19375450356).

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

10311230220 is a wasteful number, since it uses less digits than its factorization.

10311230220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15791 (or 15789 counting only the distinct ones).

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

Adding to 10311230220 its reverse (2203211301), we get a palindrome (12514441521).

The spelling of 10311230220 in words is "ten billion, three hundred eleven million, two hundred thirty thousand, two hundred twenty".