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12000013111 = 101411128901
BaseRepresentation
bin10110010110100000…
…11010101100110111
31010222022010211100001
423023100122230313
5144034000404421
65302425532131
7603241266652
oct131320325467
933868124301
1012000013111
1150a8770509
1223aa944047
13119316a798
1481ba22899
154a3774691
hex2cb41ab37

12000013111 has 8 divisors (see below), whose sum is σ = 12122192448. Its totient is φ = 11877900000.

The previous prime is 12000013097. The next prime is 12000013171. The reversal of 12000013111 is 11131000021.

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 12000013111 - 25 = 12000013079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12000013171) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 400761 + ... + 429661.

It is an arithmetic number, because the mean of its divisors is an integer number (1515274056).

Almost surely, 212000013111 is an apocalyptic number.

12000013111 is a deficient number, since it is larger than the sum of its proper divisors (122179337).

12000013111 is a wasteful number, since it uses less digits than its factorization.

12000013111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33113.

The product of its (nonzero) digits is 6, while the sum is 10.

Adding to 12000013111 its reverse (11131000021), we get a palindrome (23131013132).

The spelling of 12000013111 in words is "twelve billion, thirteen thousand, one hundred eleven".

Divisors: 1 101 4111 28901 415211 2919001 118812011 12000013111