223031423420 has 48 divisors (see below), whose sum is σ = 505133042400. Its totient is φ = 82229427456.

The previous prime is 223031423413. The next prime is 223031423437. The reversal of 223031423420 is 24324130322.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a self number, because there is not a number n which added to its sum of digits gives 223031423420.

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, 450395 + ... + 805554.

It is an arithmetic number, because the mean of its divisors is an integer number (10523605050).

Almost surely, 2^223031423420 is an apocalyptic number.

223031423420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

223031423420 is an abundant number, since it is smaller than the sum of its proper divisors (282101618980).

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

223031423420 is a wasteful number, since it uses less digits than its factorization.

223031423420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1256654 (or 1256652 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 26.

Adding to 223031423420 its reverse (24324130322), we get a palindrome (247355553742).

The spelling of 223031423420 in words is "two hundred twenty-three billion, thirty-one million, four hundred twenty-three thousand, four hundred twenty".