223112340520 has 16 divisors (see below), whose sum is σ = 502002766260. Its totient is φ = 89244936192.

The previous prime is 223112340499. The next prime is 223112340547. The reversal of 223112340520 is 25043211322.

It can be written as a sum of positive squares in 2 ways, for example, as 222921845316 + 190495204 = 472146^2 + 13802^2 .

It is a super-3 number, since 3×223112340520³ (a number of 35 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2788904217 + ... + 2788904296.

Almost surely, 2^223112340520 is an apocalyptic number.

223112340520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

223112340520 is an abundant number, since it is smaller than the sum of its proper divisors (278890425740).

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

223112340520 is a wasteful number, since it uses less digits than its factorization.

223112340520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5577808524 (or 5577808520 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 223112340520 its reverse (25043211322), we get a palindrome (248155551842).

The spelling of 223112340520 in words is "two hundred twenty-three billion, one hundred twelve million, three hundred forty thousand, five hundred twenty".