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12043103331 = 372174819169
BaseRepresentation
bin10110011011101001…
…10010110001100011
31011002022020001000010
423031310302301203
5144131013301311
65311005300003
7604303455300
oct131564626143
934068201003
1012043103331
115120021866
122401264603
13119c076a5c
1482363c0a7
154a7436da6
hex2cdd32c63

12043103331 has 24 divisors (see below), whose sum is σ = 19777873680. Its totient is φ = 6476961792.

The previous prime is 12043103329. The next prime is 12043103341. The reversal of 12043103331 is 13330134021.

It is not a de Polignac number, because 12043103331 - 21 = 12043103329 is a prime.

It is a super-2 number, since 2×120431033312 (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 12043103298 and 12043103307.

It is not an unprimeable number, because it can be changed into a prime (12043103311) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2407086 + ... + 2412083.

It is an arithmetic number, because the mean of its divisors is an integer number (824078070).

Almost surely, 212043103331 is an apocalyptic number.

12043103331 is a deficient number, since it is larger than the sum of its proper divisors (7734770349).

12043103331 is a wasteful number, since it uses less digits than its factorization.

12043103331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4819203 (or 4819196 counting only the distinct ones).

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

Adding to 12043103331 its reverse (13330134021), we get a palindrome (25373237352).

The spelling of 12043103331 in words is "twelve billion, forty-three million, one hundred three thousand, three hundred thirty-one".

Divisors: 1 3 7 17 21 49 51 119 147 357 833 2499 4819169 14457507 33734183 81925873 101202549 236139281 245777619 573481111 708417843 1720443333 4014367777 12043103331