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312113012313 = 3652115954251
BaseRepresentation
bin1001000101010110110…
…00101001111001011001
31002211121200200210211210
410202223120221321121
520103201412343223
6355214401013333
731356310555134
oct4425330517131
91084550623753
10312113012313
11110403727783
12505a6024249
132358051190b
141116bb7b21b
1581bad04893
hex48ab629e59

312113012313 has 8 divisors (see below), whose sum is σ = 416214526176. Its totient is φ = 208043420000.

The previous prime is 312113012311. The next prime is 312113012317. The reversal of 312113012313 is 313210311213.

It is a happy number.

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 312113012313 - 21 = 312113012311 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 312113012313.

It is not an unprimeable number, because it can be changed into a prime (312113012311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7957563 + ... + 7996688.

It is an arithmetic number, because the mean of its divisors is an integer number (52026815772).

Almost surely, 2312113012313 is an apocalyptic number.

It is an amenable number.

312113012313 is a deficient number, since it is larger than the sum of its proper divisors (104101513863).

312113012313 is a wasteful number, since it uses less digits than its factorization.

312113012313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15960775.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 312113012313 its reverse (313210311213), we get a palindrome (625323323526).

The spelling of 312113012313 in words is "three hundred twelve billion, one hundred thirteen million, twelve thousand, three hundred thirteen".

Divisors: 1 3 6521 19563 15954251 47862753 104037670771 312113012313