133331023020 has 96 divisors (see below), whose sum is σ = 402250339008. Its totient is φ = 32803126272.

The previous prime is 133331022983. The next prime is 133331023037. The reversal of 133331023020 is 20320133331.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1514862 + ... + 1600458.

It is an arithmetic number, because the mean of its divisors is an integer number (4190107698).

Almost surely, 2^133331023020 is an apocalyptic number.

133331023020 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 133331023020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (201125169504).

133331023020 is an abundant number, since it is smaller than the sum of its proper divisors (268919315988).

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

133331023020 is a wasteful number, since it uses less digits than its factorization.

133331023020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87619 (or 87617 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 21.

Adding to 133331023020 its reverse (20320133331), we get a palindrome (153651156351).

The spelling of 133331023020 in words is "one hundred thirty-three billion, three hundred thirty-one million, twenty-three thousand, twenty".