133230220420 has 48 divisors (see below), whose sum is σ = 305257377600. Its totient is φ = 48441153920.

The previous prime is 133230220391. The next prime is 133230220423. The reversal of 133230220420 is 24022032331.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 133230220391 and 133230220400.

It is not an unprimeable number, because it can be changed into a prime (133230220423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1905846 + ... + 1974514.

It is an arithmetic number, because the mean of its divisors is an integer number (6359528700).

Almost surely, 2^133230220420 is an apocalyptic number.

133230220420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133230220420 is an abundant number, since it is smaller than the sum of its proper divisors (172027157180).

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

133230220420 is a wasteful number, since it uses less digits than its factorization.

133230220420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77508 (or 77506 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 133230220420 its reverse (24022032331), we get a palindrome (157252252751).

The spelling of 133230220420 in words is "one hundred thirty-three billion, two hundred thirty million, two hundred twenty thousand, four hundred twenty".