133130302020 has 72 divisors (see below), whose sum is σ = 403941422976. Its totient is φ = 35491493952.

The previous prime is 133130302013. The next prime is 133130302051. The reversal of 133130302020 is 20203031331.

133130302020 is a `hidden beast` number, since 1 + 331 + 30 + 302 + 0 + 2 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 133130301984 and 133130302002.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 554229 + ... + 757251.

Almost surely, 2^133130302020 is an apocalyptic number.

133130302020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133130302020 is an abundant number, since it is smaller than the sum of its proper divisors (270811120956).

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

133130302020 is a wasteful number, since it uses less digits than its factorization.

133130302020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206681 (or 206676 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

Adding to 133130302020 its reverse (20203031331), we get a palindrome (153333333351).

The spelling of 133130302020 in words is "one hundred thirty-three billion, one hundred thirty million, three hundred two thousand, twenty".