233145224020 has 48 divisors (see below), whose sum is σ = 491684453568. Its totient is φ = 92862259200.

The previous prime is 233145223999. The next prime is 233145224029. The reversal of 233145224020 is 20422541332.

It is a self number, because there is not a number n which added to its sum of digits gives 233145224020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (233145224029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18718795 + ... + 18731245.

It is an arithmetic number, because the mean of its divisors is an integer number (10243426116).

Almost surely, 2^233145224020 is an apocalyptic number.

233145224020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

233145224020 is an abundant number, since it is smaller than the sum of its proper divisors (258539229548).

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

233145224020 is a wasteful number, since it uses less digits than its factorization.

233145224020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16360 (or 16358 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 28.

Adding to 233145224020 its reverse (20422541332), we get a palindrome (253567765352).

The spelling of 233145224020 in words is "two hundred thirty-three billion, one hundred forty-five million, two hundred twenty-four thousand, twenty".