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312113201313 = 3192553540307
BaseRepresentation
bin1001000101010110110…
…01011000000010100001
31002211121201001102002210
410202223121120002201
520103201434420223
6355214405032333
731356312303144
oct4425331300241
91084551042083
10312113201313
11110403846781
12505a60b56a9
1323580579954
141116bbca05b
1581bad40893
hex48ab6580a1

312113201313 has 8 divisors (see below), whose sum is σ = 416153866528. Its totient is φ = 208074001824.

The previous prime is 312113201311. The next prime is 312113201327. The reversal of 312113201313 is 313102311213.

It is a happy number.

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

It is not a de Polignac number, because 312113201313 - 21 = 312113201311 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 312113201313.

It is not an unprimeable number, because it can be changed into a prime (312113201311) 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, 307506 + ... + 847812.

It is an arithmetic number, because the mean of its divisors is an integer number (52019233316).

Almost surely, 2312113201313 is an apocalyptic number.

It is an amenable number.

312113201313 is a deficient number, since it is larger than the sum of its proper divisors (104040665215).

312113201313 is a wasteful number, since it uses less digits than its factorization.

312113201313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 732863.

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

Adding to 312113201313 its reverse (313102311213), we get a palindrome (625215512526).

The spelling of 312113201313 in words is "three hundred twelve billion, one hundred thirteen million, two hundred one thousand, three hundred thirteen".

Divisors: 1 3 192553 540307 577659 1620921 104037733771 312113201313