133113233220 has 96 divisors (see below), whose sum is σ = 406657843200. Its totient is φ = 32265317760.

The previous prime is 133113233167. The next prime is 133113233249. The reversal of 133113233220 is 22332311331.

It is a super-2 number, since 2×133113233220² (a number of 23 digits) contains 22 as substring.

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, 8693131 + ... + 8708429.

It is an arithmetic number, because the mean of its divisors is an integer number (4236019200).

Almost surely, 2^133113233220 is an apocalyptic number.

133113233220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133113233220 is an abundant number, since it is smaller than the sum of its proper divisors (273544609980).

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

133113233220 is a wasteful number, since it uses less digits than its factorization.

133113233220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28505 (or 28503 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 133113233220 its reverse (22332311331), we get a palindrome (155445544551).

The spelling of 133113233220 in words is "one hundred thirty-three billion, one hundred thirteen million, two hundred thirty-three thousand, two hundred twenty".