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12031013033 = 13171512811283
BaseRepresentation
bin10110011010001101…
…01011000010101001
31011001110110210020022
423031012223002221
5144114414404113
65305454210225
7604065631514
oct131506530251
934043423208
1012031013033
115114214186
1223b91b3975
131199702930
14821bb1d7b
154a6349908
hex2cd1ab0a9

12031013033 has 32 divisors (see below), whose sum is σ = 13869418752. Its totient is φ = 10338048000.

The previous prime is 12031013023. The next prime is 12031013039. The reversal of 12031013033 is 33031013021.

It is a cyclic number.

It is not a de Polignac number, because 12031013033 - 212 = 12031008937 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12031013039) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9376610 + ... + 9377892.

It is an arithmetic number, because the mean of its divisors is an integer number (433419336).

Almost surely, 212031013033 is an apocalyptic number.

12031013033 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

12031013033 is a deficient number, since it is larger than the sum of its proper divisors (1838405719).

12031013033 is a wasteful number, since it uses less digits than its factorization.

12031013033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1745.

The product of its (nonzero) digits is 162, while the sum is 17.

Adding to 12031013033 its reverse (33031013021), we get a palindrome (45062026054).

The spelling of 12031013033 in words is "twelve billion, thirty-one million, thirteen thousand, thirty-three".

Divisors: 1 13 17 151 221 281 1283 1963 2567 3653 4777 16679 21811 33371 42431 62101 193733 283543 360523 551603 721327 2518529 3293461 4686799 6128891 9377251 42814993 54438973 79675583 707706649 925462541 12031013033