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12210312311011 = 1923233919130489
BaseRepresentation
bin1011000110101110111101…
…0100111111000011100011
31121020021221122210110120201
42301223233110333003203
53100023204422423021
641545201240450031
72400110631114133
oct261535724770343
947207848713521
1012210312311011
113988400a82991
121452534a79917
136a7573317729
14302da74bcac3
15162941894591
hexb1aef53f0e3

12210312311011 has 32 divisors (see below), whose sum is σ = 13484105856000. Its totient is φ = 11005161666048.

The previous prime is 12210312310957. The next prime is 12210312311033. The reversal of 12210312311011 is 11011321301221.

It is a cyclic number.

It is not a de Polignac number, because 12210312311011 - 29 = 12210312310499 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a self number, because there is not a number n which added to its sum of digits gives 12210312311011.

It is not an unprimeable number, because it can be changed into a prime (12210312311051) 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, 93508255 + ... + 93638743.

It is an arithmetic number, because the mean of its divisors is an integer number (421378308000).

Almost surely, 212210312311011 is an apocalyptic number.

12210312311011 is a deficient number, since it is larger than the sum of its proper divisors (1273793544989).

12210312311011 is a wasteful number, since it uses less digits than its factorization.

12210312311011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131683.

The product of its (nonzero) digits is 72, while the sum is 19.

Adding to 12210312311011 its reverse (11011321301221), we get a palindrome (23221633612232).

The spelling of 12210312311011 in words is "twelve trillion, two hundred ten billion, three hundred twelve million, three hundred eleven thousand, eleven".

Divisors: 1 19 23 233 437 919 4427 5359 17461 21137 101821 130489 214127 401603 2479291 3001247 4068413 4924921 30403937 57023693 93573499 119919391 577674803 699290551 2278468429 2758145993 13286520469 27941218103 52404773867 530883143957 642648016369 12210312311011