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12133123003 = 24749490247
BaseRepresentation
bin10110100110011000…
…01100001110111011
31011022120121111210001
423103030030032323
5144322034414003
65323542533431
7606445562311
oct132314141673
934276544701
1012133123003
115166916991
122427437277
1311b4904931
148315920b1
154b02b961d
hex2d330c3bb

12133123003 has 4 divisors (see below), whose sum is σ = 12133638000. Its totient is φ = 12132608008.

The previous prime is 12133122983. The next prime is 12133123019. The reversal of 12133123003 is 30032133121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30032133121 = 38047789343.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12133123003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12133123043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 220375 + ... + 269872.

It is an arithmetic number, because the mean of its divisors is an integer number (3033409500).

Almost surely, 212133123003 is an apocalyptic number.

12133123003 is a deficient number, since it is larger than the sum of its proper divisors (514997).

12133123003 is an equidigital number, since it uses as much as digits as its factorization.

12133123003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 514996.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 12133123003 its reverse (30032133121), we get a palindrome (42165256124).

The spelling of 12133123003 in words is "twelve billion, one hundred thirty-three million, one hundred twenty-three thousand, three".

Divisors: 1 24749 490247 12133123003