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320112133213 = 1556272056919
BaseRepresentation
bin1001010100010000010…
…10111000010001011101
31010121021011110020211211
410222020022320101131
520221042201230323
6403020225544421
732061451144255
oct4521012702135
91117234406754
10320112133213
11113838a546a4
1252058aa5111
1324256807852
14116ca296965
1584d81c970d
hex4a882b845d

320112133213 has 4 divisors (see below), whose sum is σ = 320114345760. Its totient is φ = 320109920668.

The previous prime is 320112133183. The next prime is 320112133217. The reversal of 320112133213 is 312331211023.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 312331211023 = 1324025477771.

It is a cyclic number.

It is not a de Polignac number, because 320112133213 - 25 = 320112133181 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 (320112133217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 872833 + ... + 1184086.

It is an arithmetic number, because the mean of its divisors is an integer number (80028586440).

Almost surely, 2320112133213 is an apocalyptic number.

It is an amenable number.

320112133213 is a deficient number, since it is larger than the sum of its proper divisors (2212547).

320112133213 is a wasteful number, since it uses less digits than its factorization.

320112133213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2212546.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 320112133213 its reverse (312331211023), we get a palindrome (632443344236).

The spelling of 320112133213 in words is "three hundred twenty billion, one hundred twelve million, one hundred thirty-three thousand, two hundred thirteen".

Divisors: 1 155627 2056919 320112133213