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12122120023 = 131949077409
BaseRepresentation
bin10110100101000100…
…01101111101010111
31011021210220111112021
423102202031331113
5144311230320043
65322511034011
7606253214536
oct132242157527
934253814467
1012122120023
115160691212
12242380b907
1311b25516b0
1482dd2a31d
154ae3443ed
hex2d288df57

12122120023 has 8 divisors (see below), whose sum is σ = 13741674800. Its totient is φ = 10600720128.

The previous prime is 12122119951. The next prime is 12122120033. The reversal of 12122120023 is 32002122121.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12122120023 - 225 = 12088565591 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12122119979 and 12122120006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12122120033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24538458 + ... + 24538951.

It is an arithmetic number, because the mean of its divisors is an integer number (1717709350).

Almost surely, 212122120023 is an apocalyptic number.

12122120023 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

12122120023 is a deficient number, since it is larger than the sum of its proper divisors (1619554777).

12122120023 is a wasteful number, since it uses less digits than its factorization.

12122120023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49077441.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 12122120023 its reverse (32002122121), we get a palindrome (44124242144).

The spelling of 12122120023 in words is "twelve billion, one hundred twenty-two million, one hundred twenty thousand, twenty-three".

Divisors: 1 13 19 247 49077409 638006317 932470771 12122120023