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12232011100 = 2252122320111
BaseRepresentation
bin10110110010001010…
…11010110101011100
31011120110200112202011
423121011122311130
5200022343323400
65341434241004
7612056243641
oct133105326534
934513615664
1012232011100
115207718a91
122454586164
1311cc2492ba
14840773dc8
154b8cee8ba
hex2d915ad5c

12232011100 has 18 divisors (see below), whose sum is σ = 26543464304. Its totient is φ = 4892804400.

The previous prime is 12232011059. The next prime is 12232011101. The reversal of 12232011100 is 111023221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12232011101) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 61159956 + ... + 61160155.

Almost surely, 212232011100 is an apocalyptic number.

12232011100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12232011100 is an abundant number, since it is smaller than the sum of its proper divisors (14311453204).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12232011100 is a wasteful number, since it uses less digits than its factorization.

12232011100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122320125 (or 122320118 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 12232011100 its reverse (111023221), we get a palindrome (12343034321).

The spelling of 12232011100 in words is "twelve billion, two hundred thirty-two million, eleven thousand, one hundred".

Divisors: 1 2 4 5 10 20 25 50 100 122320111 244640222 489280444 611600555 1223201110 2446402220 3058002775 6116005550 12232011100