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23313212123 = 1727144311423
BaseRepresentation
bin10101101101100100…
…110110001011011011
32020011201220212211212
4111231210312023123
5340221140241443
614413203013335
71453503014315
oct255544661333
966151825755
1023313212123
119983778363
12462766a24b
132276c34896
1411b23407b5
15916a7d618
hex56d9362db

23313212123 has 16 divisors (see below), whose sum is σ = 24833765376. Its totient is φ = 21809623680.

The previous prime is 23313212077. The next prime is 23313212179. The reversal of 23313212123 is 32121231332.

It is a de Polignac number, because none of the positive numbers 2k-23313212123 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23373212123) 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, 2035190 + ... + 2046612.

It is an arithmetic number, because the mean of its divisors is an integer number (1552110336).

Almost surely, 223313212123 is an apocalyptic number.

23313212123 is a deficient number, since it is larger than the sum of its proper divisors (1520553253).

23313212123 is a wasteful number, since it uses less digits than its factorization.

23313212123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12154.

The product of its digits is 1296, while the sum is 23.

Adding to 23313212123 its reverse (32121231332), we get a palindrome (55434443455).

The spelling of 23313212123 in words is "twenty-three billion, three hundred thirteen million, two hundred twelve thousand, one hundred twenty-three".

Divisors: 1 17 271 443 4607 7531 11423 120053 194191 2040901 3095633 5060389 52625761 86026613 1371365419 23313212123