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122003113211 = 717429016173
BaseRepresentation
bin111000110011111110…
…0111100010011111011
3102122220121101022020122
41301213330330103323
53444330244110321
6132014130043455
711546231231420
oct1614774742373
9378817338218
10122003113211
1147817638791
121b78a71958b
13b6741b1765
145c953b1d47
153290c808ab
hex1c67f3c4fb

122003113211 has 4 divisors (see below), whose sum is σ = 139432129392. Its totient is φ = 104574097032.

The previous prime is 122003113159. The next prime is 122003113237. The reversal of 122003113211 is 112311300221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 112311300221 = 671676288063.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-122003113211 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 122003113211.

It is not an unprimeable number, because it can be changed into a prime (122003113711) 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, 8714508080 + ... + 8714508093.

It is an arithmetic number, because the mean of its divisors is an integer number (34858032348).

Almost surely, 2122003113211 is an apocalyptic number.

122003113211 is a deficient number, since it is larger than the sum of its proper divisors (17429016181).

122003113211 is an equidigital number, since it uses as much as digits as its factorization.

122003113211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17429016180.

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

Adding to 122003113211 its reverse (112311300221), we get a palindrome (234314413432).

The spelling of 122003113211 in words is "one hundred twenty-two billion, three million, one hundred thirteen thousand, two hundred eleven".

Divisors: 1 7 17429016173 122003113211