133233111312 has 60 divisors (see below), whose sum is σ = 400379101776. Its totient is φ = 38066602560.

The previous prime is 133233111301. The next prime is 133233111391. The reversal of 133233111312 is 213111332331.

It is a super-2 number, since 2×133233111312² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28321014 + ... + 28325717.

Almost surely, 2^133233111312 is an apocalyptic number.

133233111312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

133233111312 is an abundant number, since it is smaller than the sum of its proper divisors (267145990464).

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

133233111312 is a wasteful number, since it uses less digits than its factorization.

133233111312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56646756 (or 56646743 counting only the distinct ones).

The product of its digits is 972, while the sum is 24.

Adding to 133233111312 its reverse (213111332331), we get a palindrome (346344443643).

The spelling of 133233111312 in words is "one hundred thirty-three billion, two hundred thirty-three million, one hundred eleven thousand, three hundred twelve".