133403113220 has 24 divisors (see below), whose sum is σ = 301696272024. Its totient is φ = 49256534016.

The previous prime is 133403113199. The next prime is 133403113243. The reversal of 133403113220 is 22311304331.

It can be written as a sum of positive squares in 4 ways, for example, as 6564564484 + 126838548736 = 81022^2 + 356144^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 256544189 + ... + 256544708.

It is an arithmetic number, because the mean of its divisors is an integer number (12570678001).

Almost surely, 2^133403113220 is an apocalyptic number.

133403113220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133403113220 is an abundant number, since it is smaller than the sum of its proper divisors (168293158804).

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

133403113220 is a wasteful number, since it uses less digits than its factorization.

133403113220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 513088919 (or 513088917 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 133403113220 its reverse (22311304331), we get a palindrome (155714417551).

The spelling of 133403113220 in words is "one hundred thirty-three billion, four hundred three million, one hundred thirteen thousand, two hundred twenty".