20031133302 has 80 divisors (see below), whose sum is σ = 45258665760. Its totient is φ = 6621599232.

The previous prime is 20031133301. The next prime is 20031133387. The reversal of 20031133302 is 20333113002.

20031133302 is a `hidden beast` number, since 20 + 0 + 311 + 3 + 330 + 2 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20031133301) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 21561574 + ... + 21562502.

It is an arithmetic number, because the mean of its divisors is an integer number (565733322).

Almost surely, 2^20031133302 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20031133302, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22629332880).

20031133302 is an abundant number, since it is smaller than the sum of its proper divisors (25227532458).

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

20031133302 is a wasteful number, since it uses less digits than its factorization.

20031133302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1907 (or 1898 counting only the distinct ones).

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

Adding to 20031133302 its reverse (20333113002), we get a palindrome (40364246304).

The spelling of 20031133302 in words is "twenty billion, thirty-one million, one hundred thirty-three thousand, three hundred two".