311223301230 has 32 divisors (see below), whose sum is σ = 771030632448. Its totient is φ = 80315690400.

The previous prime is 311223301229. The next prime is 311223301237. The reversal of 311223301230 is 32103322113.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 311223301197 and 311223301206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311223301237) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 167323426 + ... + 167325285.

It is an arithmetic number, because the mean of its divisors is an integer number (24094707264).

Almost surely, 2^311223301230 is an apocalyptic number.

311223301230 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

311223301230 is an abundant number, since it is smaller than the sum of its proper divisors (459807331218).

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

311223301230 is a wasteful number, since it uses less digits than its factorization.

311223301230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334648752.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 311223301230 its reverse (32103322113), we get a palindrome (343326623343).

The spelling of 311223301230 in words is "three hundred eleven billion, two hundred twenty-three million, three hundred one thousand, two hundred thirty".