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12102231022123 = 115922782379973
BaseRepresentation
bin1011000000011100010100…
…1011100101101000101011
31120211221222021210010001011
42300013011023211220223
53041240332120201443
641423404351404351
72356233365243464
oct260070513455053
946757867703034
1012102231022123
1139465889a8940
1214355b08236b7
1369a30a4a2c58
142dba73073d6b
1515ec17e53b9d
hexb01c52e5a2b

12102231022123 has 32 divisors (see below), whose sum is σ = 13488339697920. Its totient is φ = 10765520703360.

The previous prime is 12102231022087. The next prime is 12102231022129. The reversal of 12102231022123 is 32122013220121.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12102231022123 is a prime.

It is a super-3 number, since 3×121022310221233 (a number of 40 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12102231022094 and 12102231022103.

It is not an unprimeable number, because it can be changed into a prime (12102231022129) 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, 1213494565 + ... + 1213504537.

It is an arithmetic number, because the mean of its divisors is an integer number (421510615560).

Almost surely, 212102231022123 is an apocalyptic number.

12102231022123 is a deficient number, since it is larger than the sum of its proper divisors (1386108675797).

12102231022123 is a wasteful number, since it uses less digits than its factorization.

12102231022123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18507.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 12102231022123 its reverse (32122013220121), we get a palindrome (44224244242244).

The spelling of 12102231022123 in words is "twelve trillion, one hundred two billion, two hundred thirty-one million, twenty-two thousand, one hundred twenty-three".

Divisors: 1 11 59 227 649 2497 8237 9973 13393 90607 109703 147323 485983 588407 1869799 2263871 5345813 6472477 20567789 24902581 82147601 110318141 133568389 903623611 1213499551 1469252279 4846708459 18647505427 53313793049 205122559697 1100202820193 12102231022123