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122312302013 = 1111119300183
BaseRepresentation
bin111000111101001100…
…0011001110110111101
3102200201011011201112202
41301322120121312331
54000443422131023
6132104533041245
711560004261456
oct1617230316675
9380634151482
10122312302013
1147966118920
121b856186225
13b6c3278b05
145cc449812d
1532acea7128
hex1c7a619dbd

122312302013 has 4 divisors (see below), whose sum is σ = 133431602208. Its totient is φ = 111193001820.

The previous prime is 122312302003. The next prime is 122312302031. The reversal of 122312302013 is 310203213221.

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 122312302013 - 24 = 122312301997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122312302003) 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, 5559650081 + ... + 5559650102.

It is an arithmetic number, because the mean of its divisors is an integer number (33357900552).

Almost surely, 2122312302013 is an apocalyptic number.

It is an amenable number.

122312302013 is a deficient number, since it is larger than the sum of its proper divisors (11119300195).

122312302013 is a wasteful number, since it uses less digits than its factorization.

122312302013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11119300194.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 122312302013 its reverse (310203213221), we get a palindrome (432515515234).

The spelling of 122312302013 in words is "one hundred twenty-two billion, three hundred twelve million, three hundred two thousand, thirteen".

Divisors: 1 11 11119300183 122312302013