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12132030023 = 14878158729
BaseRepresentation
bin10110100110010000…
…00001011001000111
31011022111112222111022
423103020001121013
5144321244430043
65323503301355
7606433360631
oct132310013107
934274488438
1012132030023
11516623a7a3
122426baa85b
1311b46112b9
14831389a51
154b0150868
hex2d3201647

12132030023 has 4 divisors (see below), whose sum is σ = 12140190240. Its totient is φ = 12123869808.

The previous prime is 12132029989. The next prime is 12132030047. The reversal of 12132030023 is 32003023121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32003023121 = 73438397577.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12132030023 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12132029983 and 12132030010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12122030023) 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, 4077878 + ... + 4080851.

It is an arithmetic number, because the mean of its divisors is an integer number (3035047560).

Almost surely, 212132030023 is an apocalyptic number.

12132030023 is a deficient number, since it is larger than the sum of its proper divisors (8160217).

12132030023 is an equidigital number, since it uses as much as digits as its factorization.

12132030023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8160216.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 12132030023 its reverse (32003023121), we get a palindrome (44135053144).

The spelling of 12132030023 in words is "twelve billion, one hundred thirty-two million, thirty thousand, twenty-three".

Divisors: 1 1487 8158729 12132030023