133023131312 has 40 divisors (see below), whose sum is σ = 275220301440. Its totient is φ = 62146506240.

The previous prime is 133023131291. The next prime is 133023131327. The reversal of 133023131312 is 213131320331.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4609613 + ... + 4638380.

It is an arithmetic number, because the mean of its divisors is an integer number (6880507536).

Almost surely, 2^133023131312 is an apocalyptic number.

It is an amenable number.

133023131312 is an abundant number, since it is smaller than the sum of its proper divisors (142197170128).

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

133023131312 is a wasteful number, since it uses less digits than its factorization.

133023131312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9248061 (or 9248055 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 133023131312 its reverse (213131320331), we get a palindrome (346154451643).

The spelling of 133023131312 in words is "one hundred thirty-three billion, twenty-three million, one hundred thirty-one thousand, three hundred twelve".