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122111313103 = 139393177931
BaseRepresentation
bin111000110111001100…
…1101100010011001111
3102200012010222102121001
41301232121230103033
54000040444004403
6132032553121131
711552014015123
oct1615631542317
9380163872531
10122111313103
114787271a98a
121b7ba9b91a7
13b690736670
145ca58d9583
15329a504c1d
hex1c6e66c4cf

122111313103 has 4 divisors (see below), whose sum is σ = 131504491048. Its totient is φ = 112718135160.

The previous prime is 122111313091. The next prime is 122111313109. The reversal of 122111313103 is 301313111221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 122111313103 - 213 = 122111304911 is a prime.

It is a super-2 number, since 2×1221113131032 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122111313109) 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, 4696588953 + ... + 4696588978.

It is an arithmetic number, because the mean of its divisors is an integer number (32876122762).

Almost surely, 2122111313103 is an apocalyptic number.

122111313103 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

122111313103 is a deficient number, since it is larger than the sum of its proper divisors (9393177945).

122111313103 is an equidigital number, since it uses as much as digits as its factorization.

122111313103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9393177944.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 122111313103 its reverse (301313111221), we get a palindrome (423424424324).

The spelling of 122111313103 in words is "one hundred twenty-two billion, one hundred eleven million, three hundred thirteen thousand, one hundred three".

Divisors: 1 13 9393177931 122111313103