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312231201113 = 13151115895291
BaseRepresentation
bin1001000101100100110…
…11100000100101011001
31002211220221002102101202
410202302123200211121
520103422141413423
6355234222123545
731362244263656
oct4426233404531
91084827072352
10312231201113
11110464411777
12506197205b5
132359bb53310
141117d744c2d
1581c639d728
hex48b26e0959

312231201113 has 8 divisors (see below), whose sum is σ = 336471541056. Its totient is φ = 288022654800.

The previous prime is 312231201091. The next prime is 312231201157. The reversal of 312231201113 is 311102132213.

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 312231201113 - 26 = 312231201049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (312231201193) 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, 7928003 + ... + 7967288.

It is an arithmetic number, because the mean of its divisors is an integer number (42058942632).

Almost surely, 2312231201113 is an apocalyptic number.

It is an amenable number.

312231201113 is a deficient number, since it is larger than the sum of its proper divisors (24240339943).

312231201113 is a wasteful number, since it uses less digits than its factorization.

312231201113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15896815.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 312231201113 its reverse (311102132213), we get a palindrome (623333333326).

The spelling of 312231201113 in words is "three hundred twelve billion, two hundred thirty-one million, two hundred one thousand, one hundred thirteen".

Divisors: 1 13 1511 19643 15895291 206638783 24017784701 312231201113