223031133020 has 24 divisors (see below), whose sum is σ = 481023904704. Its totient is φ = 86801305536.

The previous prime is 223031133011. The next prime is 223031133037. The reversal of 223031133020 is 20331130322.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 223031132983 and 223031133001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 150695972 + ... + 150697451.

It is an arithmetic number, because the mean of its divisors is an integer number (20042662696).

Almost surely, 2^223031133020 is an apocalyptic number.

223031133020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

223031133020 is an abundant number, since it is smaller than the sum of its proper divisors (257992771684).

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

223031133020 is a wasteful number, since it uses less digits than its factorization.

223031133020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301393469 (or 301393467 counting only the distinct ones).

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

Adding to 223031133020 its reverse (20331130322), we get a palindrome (243362263342).

The spelling of 223031133020 in words is "two hundred twenty-three billion, thirty-one million, one hundred thirty-three thousand, twenty".