220311323030 has 32 divisors (see below), whose sum is σ = 422207341920. Its totient is φ = 82482485760.

The previous prime is 220311323009. The next prime is 220311323077. The reversal of 220311323030 is 30323113022.

It is a junction number, because it is equal to n+sod(n) for n = 220311322993 and 220311323011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3549200 + ... + 3610739.

It is an arithmetic number, because the mean of its divisors is an integer number (13193979435).

Almost surely, 2^220311323030 is an apocalyptic number.

220311323030 is a deficient number, since it is larger than the sum of its proper divisors (201896018890).

220311323030 is a wasteful number, since it uses less digits than its factorization.

220311323030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7160144.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 220311323030 its reverse (30323113022), we get a palindrome (250634436052).

The spelling of 220311323030 in words is "two hundred twenty billion, three hundred eleven million, three hundred twenty-three thousand, thirty".