133023203221220 has 48 divisors (see below), whose sum is σ = 300854879231088. Its totient is φ = 49113355345920.

The previous prime is 133023203221213. The next prime is 133023203221283. The reversal of 133023203221220 is 22122302320331.

It can be written as a sum of positive squares in 8 ways, for example, as 1788216166564 + 131234987054656 = 1337242^2 + 11455784^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a self number, because there is not a number n which added to its sum of digits gives 133023203221220.

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, 10718669 + ... + 19517588.

It is an arithmetic number, because the mean of its divisors is an integer number (6267809983981).

Almost surely, 2^{133023203221220} is an apocalyptic number.

133023203221220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133023203221220 is an abundant number, since it is smaller than the sum of its proper divisors (167831676009868).

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

133023203221220 is a wasteful number, since it uses less digits than its factorization.

133023203221220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30253200 (or 30253198 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 26.

Adding to 133023203221220 its reverse (22122302320331), we get a palindrome (155145505541551).

The spelling of 133023203221220 in words is "one hundred thirty-three trillion, twenty-three billion, two hundred three million, two hundred twenty-one thousand, two hundred twenty".