133031545320 has 128 divisors (see below), whose sum is σ = 421348636800. Its totient is φ = 33508048896.

The previous prime is 133031545319. The next prime is 133031545331. The reversal of 133031545320 is 23545130331.

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

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 681792 + ... + 854928.

It is an arithmetic number, because the mean of its divisors is an integer number (3291786225).

Almost surely, 2^133031545320 is an apocalyptic number.

133031545320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 133031545320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (210674318400).

133031545320 is an abundant number, since it is smaller than the sum of its proper divisors (288317091480).

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

133031545320 is a wasteful number, since it uses less digits than its factorization.

133031545320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173507 (or 173503 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 30.

Adding to 133031545320 its reverse (23545130331), we get a palindrome (156576675651).

The spelling of 133031545320 in words is "one hundred thirty-three billion, thirty-one million, five hundred forty-five thousand, three hundred twenty".