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12303220032231 = 32310312291408577
BaseRepresentation
bin1011001100001001000100…
…0011110100001011100111
31121120011202120001201100120
42303002101003310023213
53103033443312012411
642100004331413023
72406610155530052
oct263022103641347
947504676051316
1012303220032231
113a13847a66a67
1214685435b4173
136b325b681cbb
1430769c641a99
1516507d138106
hexb30910f42e7

12303220032231 has 32 divisors (see below), whose sum is σ = 17297788584960. Its totient is φ = 7763034200064.

The previous prime is 12303220032161. The next prime is 12303220032239. The reversal of 12303220032231 is 13223002230321.

It is not a de Polignac number, because 12303220032231 - 226 = 12303152923367 is a prime.

It is a super-2 number, since 2×123032200322312 (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12303220032239) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8030215 + ... + 9438791.

It is an arithmetic number, because the mean of its divisors is an integer number (540555893280).

Almost surely, 212303220032231 is an apocalyptic number.

12303220032231 is a deficient number, since it is larger than the sum of its proper divisors (4994568552729).

12303220032231 is a wasteful number, since it uses less digits than its factorization.

12303220032231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1409935.

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 12303220032231 its reverse (13223002230321), we get a palindrome (25526222262552).

The spelling of 12303220032231 in words is "twelve trillion, three hundred three billion, two hundred twenty million, thirty-two thousand, two hundred thirty-one".

Divisors: 1 3 23 69 103 309 1229 2369 3687 7107 28267 84801 126587 379761 1408577 2911501 4225731 8734503 32397271 97191813 145083431 435250293 1731141133 3336918913 5193423399 10010756739 39816246059 119448738177 178307536699 534922610097 4101073344077 12303220032231