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12120202023 = 3157103924767
BaseRepresentation
bin10110100100110101…
…11001101100100111
31011021200022001112020
423102122321230213
5144310232431043
65322401554223
7606231005646
oct132232715447
934250261466
1012120202023
11515a5a1196
122423045973
1311b202c697
1482d98b35d
154ae0b5e83
hex2d26b9b27

12120202023 has 16 divisors (see below), whose sum is σ = 16279511040. Its totient is φ = 8020617696.

The previous prime is 12120202019. The next prime is 12120202043. The reversal of 12120202023 is 32020202121.

It is a happy number.

It is not a de Polignac number, because 12120202023 - 22 = 12120202019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12120201993 and 12120202011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12120202043) 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 15 ways as a sum of consecutive naturals, for example, 476986 + ... + 501752.

It is an arithmetic number, because the mean of its divisors is an integer number (1017469440).

Almost surely, 212120202023 is an apocalyptic number.

12120202023 is a deficient number, since it is larger than the sum of its proper divisors (4159309017).

12120202023 is a wasteful number, since it uses less digits than its factorization.

12120202023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25966.

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 12120202023 its reverse (32020202121), we get a palindrome (44140404144).

The spelling of 12120202023 in words is "twelve billion, one hundred twenty million, two hundred two thousand, twenty-three".

Divisors: 1 3 157 471 1039 3117 24767 74301 163123 489369 3888419 11665257 25732913 77198739 4040067341 12120202023