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12123233124 = 2231217830131
BaseRepresentation
bin10110100101001100…
…11101101101100100
31011021220000001102020
423102212131231210
5144312021424444
65322550543140
7606265531662
oct132246355544
934256001366
1012123233124
115161281532
122424067ab0
1311b2851232
14830139c32
154ae4b4119
hex2d299db64

12123233124 has 24 divisors (see below), whose sum is σ = 28310821728. Its totient is φ = 4037752320.

The previous prime is 12123233107. The next prime is 12123233131. The reversal of 12123233124 is 42133232121.

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

It is a junction number, because it is equal to n+sod(n) for n = 12123233094 and 12123233103.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 400462 + ... + 429669.

It is an arithmetic number, because the mean of its divisors is an integer number (1179617572).

Almost surely, 212123233124 is an apocalyptic number.

It is an amenable number.

12123233124 is an abundant number, since it is smaller than the sum of its proper divisors (16187588604).

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

12123233124 is a wasteful number, since it uses less digits than its factorization.

12123233124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 831355 (or 831353 counting only the distinct ones).

The product of its digits is 1728, while the sum is 24.

Adding to 12123233124 its reverse (42133232121), we get a palindrome (54256465245).

The spelling of 12123233124 in words is "twelve billion, one hundred twenty-three million, two hundred thirty-three thousand, one hundred twenty-four".

Divisors: 1 2 3 4 6 12 1217 2434 3651 4868 7302 14604 830131 1660262 2490393 3320524 4980786 9961572 1010269427 2020538854 3030808281 4041077708 6061616562 12123233124