133300312240 has 20 divisors (see below), whose sum is σ = 309923226144. Its totient is φ = 53320124864.

The previous prime is 133300312237. The next prime is 133300312259. The reversal of 133300312240 is 42213003331.

It is a tau number, because it is divible by the number of its divisors (20).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 833126872 + ... + 833127031.

Almost surely, 2^133300312240 is an apocalyptic number.

133300312240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133300312240 is an abundant number, since it is smaller than the sum of its proper divisors (176622913904).

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

133300312240 is a wasteful number, since it uses less digits than its factorization.

133300312240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1666253916 (or 1666253910 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 133300312240 its reverse (42213003331), we get a palindrome (175513315571).

The spelling of 133300312240 in words is "one hundred thirty-three billion, three hundred million, three hundred twelve thousand, two hundred forty".