1312421133 has 8 divisors (see below), whose sum is σ = 1750320000. Its totient is φ = 874734848.

The previous prime is 1312421113. The next prime is 1312421153. The reversal of 1312421133 is 3311242131.

It is an interprime number because it is at equal distance from previous prime (1312421113) and next prime (1312421153).

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

It is a cyclic number.

It is not a de Polignac number, because 1312421133 - 2¹⁴ = 1312404749 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312421113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38133 + ... + 63866.

It is an arithmetic number, because the mean of its divisors is an integer number (218790000).

Almost surely, 2^1312421133 is an apocalyptic number.

It is an amenable number.

1312421133 is a deficient number, since it is larger than the sum of its proper divisors (437898867).

1312421133 is a wasteful number, since it uses less digits than its factorization.

1312421133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106291.

The product of its digits is 432, while the sum is 21.

The square root of 1312421133 is about 36227.3533811125. The cubic root of 1312421133 is about 1094.8578544034.

Adding to 1312421133 its reverse (3311242131), we get a palindrome (4623663264).

The spelling of 1312421133 in words is "one billion, three hundred twelve million, four hundred twenty-one thousand, one hundred thirty-three".