133313044420 has 48 divisors (see below), whose sum is σ = 280623515760. Its totient is φ = 53198498304.

The previous prime is 133313044409. The next prime is 133313044463. The reversal of 133313044420 is 24440313331.

It can be written as a sum of positive squares in 8 ways, for example, as 210656196 + 133102388224 = 14514^2 + 364832^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16180542 + ... + 16188778.

It is an arithmetic number, because the mean of its divisors is an integer number (5846323245).

Almost surely, 2^133313044420 is an apocalyptic number.

133313044420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133313044420 is an abundant number, since it is smaller than the sum of its proper divisors (147310471340).

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

133313044420 is a wasteful number, since it uses less digits than its factorization.

133313044420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10072 (or 10070 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 133313044420 its reverse (24440313331), we get a palindrome (157753357751).

The spelling of 133313044420 in words is "one hundred thirty-three billion, three hundred thirteen million, forty-four thousand, four hundred twenty".