311223200230230 has 128 divisors (see below), whose sum is σ = 791565134400000. Its totient is φ = 78093157183488.

The previous prime is 311223200230093. The next prime is 311223200230333. The reversal of 311223200230230 is 32032002322113.

It is a self number, because there is not a number n which added to its sum of digits gives 311223200230230.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1899717261 + ... + 1899881079.

It is an arithmetic number, because the mean of its divisors is an integer number (6184102612500).

Almost surely, 2^{311223200230230} is an apocalyptic number.

311223200230230 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 311223200230230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (395782567200000).

311223200230230 is an abundant number, since it is smaller than the sum of its proper divisors (480341934169770).

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

311223200230230 is a wasteful number, since it uses less digits than its factorization.

311223200230230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186366.

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 311223200230230 its reverse (32032002322113), we get a palindrome (343255202552343).

The spelling of 311223200230230 in words is "three hundred eleven trillion, two hundred twenty-three billion, two hundred million, two hundred thirty thousand, two hundred thirty".