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12232313013 = 329472991517
BaseRepresentation
bin10110110010001101…
…00100100010110101
31011120111020212220010
423121012210202311
5200022433004023
65341444530433
7612061642104
oct133106444265
934514225803
1012232313013
1152079048a8
1224546b0a19
1311cc32384b
1484081203b
154b8d5e093
hex2d91a48b5

12232313013 has 16 divisors (see below), whose sum is σ = 17231143680. Its totient is φ = 7706145216.

The previous prime is 12232312987. The next prime is 12232313021. The reversal of 12232313013 is 31031323221.

It is not a de Polignac number, because 12232313013 - 210 = 12232311989 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12232313053) 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, 1491670 + ... + 1499847.

It is an arithmetic number, because the mean of its divisors is an integer number (1076946480).

Almost surely, 212232313013 is an apocalyptic number.

It is an amenable number.

12232313013 is a deficient number, since it is larger than the sum of its proper divisors (4998830667).

12232313013 is a wasteful number, since it uses less digits than its factorization.

12232313013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2991596.

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

Adding to 12232313013 its reverse (31031323221), we get a palindrome (43263636234).

The spelling of 12232313013 in words is "twelve billion, two hundred thirty-two million, three hundred thirteen thousand, thirteen".

Divisors: 1 3 29 47 87 141 1363 4089 2991517 8974551 86753993 140601299 260261979 421803897 4077437671 12232313013