223120001232 has 60 divisors (see below), whose sum is σ = 636207761124. Its totient is φ = 72970060800.

The previous prime is 223120001219. The next prime is 223120001233. The reversal of 223120001232 is 232100021322.

223120001232 is a `hidden beast` number, since 2 + 231 + 200 + 0 + 1 + 232 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 101330168976 + 121789832256 = 318324^2 + 348984^2 .

It is a super-3 number, since 3×223120001232³ (a number of 35 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223120001233) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14609769 + ... + 14625032.

Almost surely, 2^223120001232 is an apocalyptic number.

It is an amenable number.

223120001232 is an abundant number, since it is smaller than the sum of its proper divisors (413087759892).

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

223120001232 is a wasteful number, since it uses less digits than its factorization.

223120001232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29234868 (or 29234859 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 223120001232 its reverse (232100021322), we get a palindrome (455220022554).

The spelling of 223120001232 in words is "two hundred twenty-three billion, one hundred twenty million, one thousand, two hundred thirty-two".