1312200133 has 8 divisors (see below), whose sum is σ = 1321094880. Its totient is φ = 1303323120.

The previous prime is 1312200119. The next prime is 1312200143. The reversal of 1312200133 is 3310022131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1312200133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312200143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 165643 + ... + 173383.

It is an arithmetic number, because the mean of its divisors is an integer number (165136860).

Almost surely, 2^1312200133 is an apocalyptic number.

It is an amenable number.

1312200133 is a deficient number, since it is larger than the sum of its proper divisors (8894747).

1312200133 is an equidigital number, since it uses as much as digits as its factorization.

1312200133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8867.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 1312200133 is about 36224.3030712808. The cubic root of 1312200133 is about 1094.7963961915.

Adding to 1312200133 its reverse (3310022131), we get a palindrome (4622222264).

The spelling of 1312200133 in words is "one billion, three hundred twelve million, two hundred thousand, one hundred thirty-three".