133031512020 has 96 divisors (see below), whose sum is σ = 430253824896. Its totient is φ = 30352998400.

The previous prime is 133031511961. The next prime is 133031512049. The reversal of 133031512020 is 20215130331.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5917101 + ... + 5939540.

It is an arithmetic number, because the mean of its divisors is an integer number (4481810676).

Almost surely, 2^133031512020 is an apocalyptic number.

133031512020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133031512020 is an abundant number, since it is smaller than the sum of its proper divisors (297222312876).

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

133031512020 is a wasteful number, since it uses less digits than its factorization.

133031512020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11856681 (or 11856679 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 21.

Adding to 133031512020 its reverse (20215130331), we get a palindrome (153246642351).

The spelling of 133031512020 in words is "one hundred thirty-three billion, thirty-one million, five hundred twelve thousand, twenty".