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1218110423013 = 321112304145687
BaseRepresentation
bin10001101110011101000…
…010011111111111100101
311022110011012122220220100
4101232131002133333211
5124424142232014023
62331331525454313
7154001624521101
oct21563502377745
94273135586810
101218110423013
1142a663639a40
121780b2871399
138ab3766b043
1442d5789a901
1521a44b06c43
hex11b9d09ffe5

1218110423013 has 12 divisors (see below), whose sum is σ = 1919446727328. Its totient is φ = 738248741160.

The previous prime is 1218110423011. The next prime is 1218110423059. The reversal of 1218110423013 is 3103240118121.

1218110423013 is a `hidden beast` number, since 1 + 218 + 1 + 10 + 423 + 0 + 13 = 666.

It is not a de Polignac number, because 1218110423013 - 21 = 1218110423011 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1218110423011) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6152072745 + ... + 6152072942.

It is an arithmetic number, because the mean of its divisors is an integer number (159953893944).

Almost surely, 21218110423013 is an apocalyptic number.

It is an amenable number.

1218110423013 is a deficient number, since it is larger than the sum of its proper divisors (701336304315).

1218110423013 is a wasteful number, since it uses less digits than its factorization.

1218110423013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12304145704 (or 12304145701 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The spelling of 1218110423013 in words is "one trillion, two hundred eighteen billion, one hundred ten million, four hundred twenty-three thousand, thirteen".

Divisors: 1 3 9 11 33 99 12304145687 36912437061 110737311183 135345602557 406036807671 1218110423013