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2313312123 = 310310968683
BaseRepresentation
bin1000100111100010…
…0101011101111011
312222012220102122210
42021320211131323
514214201441443
61021314150203
7111216554133
oct21170453573
95865812583
102313312123
11a87893701
12546882363
132ab356455
1417d335ac3
15d8150c33
hex89e2577b

2313312123 has 16 divisors (see below), whose sum is σ = 3142979840. Its totient is φ = 1513201824.

The previous prime is 2313312103. The next prime is 2313312167. The reversal of 2313312123 is 3212133132.

It is not a de Polignac number, because 2313312123 - 217 = 2313181051 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2313312123.

It is not an unprimeable number, because it can be changed into a prime (2313312103) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 661 + ... + 68022.

It is an arithmetic number, because the mean of its divisors is an integer number (196436240).

Almost surely, 22313312123 is an apocalyptic number.

2313312123 is a deficient number, since it is larger than the sum of its proper divisors (829667717).

2313312123 is a wasteful number, since it uses less digits than its factorization.

2313312123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68898.

The product of its digits is 648, while the sum is 21.

The square root of 2313312123 is about 48096.9034658158. The cubic root of 2313312123 is about 1322.5479030632.

Adding to 2313312123 its reverse (3212133132), we get a palindrome (5525445255).

The spelling of 2313312123 in words is "two billion, three hundred thirteen million, three hundred twelve thousand, one hundred twenty-three".

Divisors: 1 3 103 109 309 327 11227 33681 68683 206049 7074349 7486447 21223047 22459341 771104041 2313312123