133220023230 has 128 divisors (see below), whose sum is σ = 386940395520. Its totient is φ = 28674760320.

The previous prime is 133220023207. The next prime is 133220023241. The reversal of 133220023230 is 32320022331.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 133220023197 and 133220023206.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 566365 + ... + 766295.

It is an arithmetic number, because the mean of its divisors is an integer number (3022971840).

Almost surely, 2^133220023230 is an apocalyptic number.

133220023230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 133220023230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (193470197760).

133220023230 is an abundant number, since it is smaller than the sum of its proper divisors (253720372290).

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

133220023230 is a wasteful number, since it uses less digits than its factorization.

133220023230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200134.

The product of its (nonzero) digits is 1296, while the sum is 21.

Adding to 133220023230 its reverse (32320022331), we get a palindrome (165540045561).

The spelling of 133220023230 in words is "one hundred thirty-three billion, two hundred twenty million, twenty-three thousand, two hundred thirty".