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12331142412 = 2231027595201
BaseRepresentation
bin10110111101111111…
…00100110100001100
31011211101012221100020
423132333210310030
5200223233024122
65355335102140
7614401660341
oct133677446414
934741187306
1012331142412
115258676896
122481811950
131216947594
1484d9ba7c8
154c2881c5c
hex2defe4d0c

12331142412 has 12 divisors (see below), whose sum is σ = 28772665656. Its totient is φ = 4110380800.

The previous prime is 12331142401. The next prime is 12331142489. The reversal of 12331142412 is 21424113321.

It is a tau number, because it is divible by the number of its divisors (12).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 513797589 + ... + 513797612.

It is an arithmetic number, because the mean of its divisors is an integer number (2397722138).

Almost surely, 212331142412 is an apocalyptic number.

12331142412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12331142412 is an abundant number, since it is smaller than the sum of its proper divisors (16441523244).

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

12331142412 is a wasteful number, since it uses less digits than its factorization.

12331142412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1027595208 (or 1027595206 counting only the distinct ones).

The product of its digits is 1152, while the sum is 24.

Adding to 12331142412 its reverse (21424113321), we get a palindrome (33755255733).

The spelling of 12331142412 in words is "twelve billion, three hundred thirty-one million, one hundred forty-two thousand, four hundred twelve".

Divisors: 1 2 3 4 6 12 1027595201 2055190402 3082785603 4110380804 6165571206 12331142412