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12031111102 = 228121407671
BaseRepresentation
bin10110011010001110…
…00010111110111110
31011001110122202202111
423031013002332332
5144114431023402
65305500244234
7604066520443
oct131507027676
934043582674
1012031111102
11511428092a
1223b924067a
13119973846a
14821bd99ca
154a63689d7
hex2cd1c2fbe

12031111102 has 8 divisors (see below), whose sum is σ = 18110890512. Its totient is φ = 5994147600.

The previous prime is 12031111091. The next prime is 12031111151. The reversal of 12031111102 is 20111113021.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10703274 + ... + 10704397.

It is an arithmetic number, because the mean of its divisors is an integer number (2263861314).

Almost surely, 212031111102 is an apocalyptic number.

12031111102 is a deficient number, since it is larger than the sum of its proper divisors (6079779410).

12031111102 is a wasteful number, since it uses less digits than its factorization.

12031111102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21407954.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 12031111102 its reverse (20111113021), we get a palindrome (32142224123).

The spelling of 12031111102 in words is "twelve billion, thirty-one million, one hundred eleven thousand, one hundred two".

Divisors: 1 2 281 562 21407671 42815342 6015555551 12031111102