312130133 has 8 divisors (see below), whose sum is σ = 356947968. Its totient is φ = 267369264.

The previous prime is 312130121. The next prime is 312130141. The reversal of 312130133 is 331031213.

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 312130133 - 2¹² = 312126037 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 (312130193) 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, 1766 + ... + 25047.

It is an arithmetic number, because the mean of its divisors is an integer number (44618496).

Almost surely, 2^312130133 is an apocalyptic number.

It is an amenable number.

312130133 is a deficient number, since it is larger than the sum of its proper divisors (44817835).

312130133 is a wasteful number, since it uses less digits than its factorization.

312130133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28483.

The product of its (nonzero) digits is 162, while the sum is 17.

The square root of 312130133 is about 17667.2050138102. The cubic root of 312130133 is about 678.3365721877.

Adding to 312130133 its reverse (331031213), we get a palindrome (643161346).

The spelling of 312130133 in words is "three hundred twelve million, one hundred thirty thousand, one hundred thirty-three".