133323371220 has 48 divisors (see below), whose sum is σ = 402021244800. Its totient is φ = 32818060416.

The previous prime is 133323371213. The next prime is 133323371239. The reversal of 133323371220 is 22173323331.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85462920 + ... + 85464479.

It is an arithmetic number, because the mean of its divisors is an integer number (8375442600).

Almost surely, 2^133323371220 is an apocalyptic number.

133323371220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133323371220 is an abundant number, since it is smaller than the sum of its proper divisors (268697873580).

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

133323371220 is a wasteful number, since it uses less digits than its factorization.

133323371220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170927424 (or 170927422 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 30.

Adding to 133323371220 its reverse (22173323331), we get a palindrome (155496694551).

The spelling of 133323371220 in words is "one hundred thirty-three billion, three hundred twenty-three million, three hundred seventy-one thousand, two hundred twenty".