223131000 has 64 divisors (see below), whose sum is σ = 696178080. Its totient is φ = 59500800.

The previous prime is 223130989. The next prime is 223131011. The reversal of 223131000 is 131322.

It is a happy number.

223131000 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (223130989) and next prime (223131011).

It is a super-3 number, since 3×223131000³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (12).

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, 34189 + ... + 40188.

Almost surely, 2^223131000 is an apocalyptic number.

223131000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

223131000 is an abundant number, since it is smaller than the sum of its proper divisors (473047080).

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

223131000 is a wasteful number, since it uses less digits than its factorization.

223131000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74401 (or 74387 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 223131000 is about 14937.5700835176. The cubic root of 223131000 is about 606.5314206961.

Adding to 223131000 its reverse (131322), we get a palindrome (223262322).

The spelling of 223131000 in words is "two hundred twenty-three million, one hundred thirty-one thousand".