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231013312323 = 3293185655659
BaseRepresentation
bin1101011100100101110…
…1110110011101000011
3211002021201022012001120
43113021131312131003
512241103401443243
6254043121003323
722455503520123
oct3271135663503
9732251265046
10231013312323
1189a76aa0832
1238931a83543
1318a27602861
14b276d40c83
15602100dc83
hex35c9776743

231013312323 has 16 divisors (see below), whose sum is σ = 328917734400. Its totient is φ = 143901505440.

The previous prime is 231013312289. The next prime is 231013312339. The reversal of 231013312323 is 323213310132.

It is not a de Polignac number, because 231013312323 - 28 = 231013312067 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 231013312293 and 231013312302.

It is not an unprimeable number, because it can be changed into a prime (231013312363) 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, 42825133 + ... + 42830526.

It is an arithmetic number, because the mean of its divisors is an integer number (20557358400).

Almost surely, 2231013312323 is an apocalyptic number.

231013312323 is a deficient number, since it is larger than the sum of its proper divisors (97904422077).

231013312323 is a wasteful number, since it uses less digits than its factorization.

231013312323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85655722.

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 231013312323 its reverse (323213310132), we get a palindrome (554226622455).

The spelling of 231013312323 in words is "two hundred thirty-one billion, thirteen million, three hundred twelve thousand, three hundred twenty-three".

Divisors: 1 3 29 31 87 93 899 2697 85655659 256966977 2484014111 2655325429 7452042333 7965976287 77004437441 231013312323