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122231110013 = 690111771183
BaseRepresentation
bin111000111010110001…
…0101011100101111101
3102200111111101202001122
41301311202223211331
54000312131010023
6132052512520325
711555000202215
oct1616542534575
9380444352048
10122231110013
11479243030a1
121b832b500a5
13b6ac4bbccc
145cb77a1245
1532a5cba2c8
hex1c758ab97d

122231110013 has 4 divisors (see below), whose sum is σ = 122232950208. Its totient is φ = 122229269820.

The previous prime is 122231109997. The next prime is 122231110031. The reversal of 122231110013 is 310011132221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 122231110013 - 24 = 122231109997 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122231109973 and 122231110000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122231110033) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 816581 + ... + 954602.

It is an arithmetic number, because the mean of its divisors is an integer number (30558237552).

Almost surely, 2122231110013 is an apocalyptic number.

It is an amenable number.

122231110013 is a deficient number, since it is larger than the sum of its proper divisors (1840195).

122231110013 is an equidigital number, since it uses as much as digits as its factorization.

122231110013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1840194.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 122231110013 its reverse (310011132221), we get a palindrome (432242242234).

The spelling of 122231110013 in words is "one hundred twenty-two billion, two hundred thirty-one million, one hundred ten thousand, thirteen".

Divisors: 1 69011 1771183 122231110013