133530302000 has 80 divisors (see below), whose sum is σ = 322984833600. Its totient is φ = 53394163200.

The previous prime is 133530301991. The next prime is 133530302011. The reversal of 133530302000 is 203035331.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×133530302000² (a number of 23 digits) contains 22 as substring.

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

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, 7048541 + ... + 7067459.

It is an arithmetic number, because the mean of its divisors is an integer number (4037310420).

Almost surely, 2^133530302000 is an apocalyptic number.

133530302000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 133530302000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (161492416800).

133530302000 is an abundant number, since it is smaller than the sum of its proper divisors (189454531600).

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

133530302000 is a wasteful number, since it uses less digits than its factorization.

133530302000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22471 (or 22455 counting only the distinct ones).

The product of its (nonzero) digits is 810, while the sum is 20.

Adding to 133530302000 its reverse (203035331), we get a palindrome (133733337331).

The spelling of 133530302000 in words is "one hundred thirty-three billion, five hundred thirty million, three hundred two thousand".