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12333420231 = 31117911871759
BaseRepresentation
bin10110111110010000…
…10000111011000111
31011211112111122220220
423133020100323013
5200224323421411
65355455555423
7614430225246
oct133710207307
934745448826
1012333420231
115259992190
12248252bb73
1312172642c2
1485001095d
154c2b81b06
hex2df210ec7

12333420231 has 32 divisors (see below), whose sum is σ = 18065203200. Its totient is φ = 7422557280.

The previous prime is 12333420221. The next prime is 12333420241. The reversal of 12333420231 is 13202433321.

It is an interprime number because it is at equal distance from previous prime (12333420221) and next prime (12333420241).

It is not a de Polignac number, because 12333420231 - 26 = 12333420167 is a prime.

It is a super-2 number, since 2×123334202312 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12333420221) 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, 7010730 + ... + 7012488.

It is an arithmetic number, because the mean of its divisors is an integer number (564537600).

Almost surely, 212333420231 is an apocalyptic number.

12333420231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12333420231 is a deficient number, since it is larger than the sum of its proper divisors (5731782969).

12333420231 is a wasteful number, since it uses less digits than its factorization.

12333420231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3139.

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

Adding to 12333420231 its reverse (13202433321), we get a palindrome (25535853552).

The spelling of 12333420231 in words is "twelve billion, three hundred thirty-three million, four hundred twenty thousand, two hundred thirty-one".

Divisors: 1 3 11 33 179 537 1187 1759 1969 3561 5277 5907 13057 19349 39171 58047 212473 314861 637419 944583 2087933 2337203 3463471 6263799 7011609 10390413 22967263 68901789 373740007 1121220021 4111140077 12333420231