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123122033213 is a prime number
BaseRepresentation
bin111001010101010100…
…1010010001000111101
3102202210120211022221012
41302222221102020331
54004123220030323
6132321140245005
711616036005024
oct1625251221075
9382716738835
10123122033213
11482411a5963
121ba413a0765
13b7c1c580ba
145d5dc378bb
153309102678
hex1caaa5223d

123122033213 has 2 divisors, whose sum is σ = 123122033214. Its totient is φ = 123122033212.

The previous prime is 123122033173. The next prime is 123122033291. The reversal of 123122033213 is 312330221321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 121607033284 + 1514999929 = 348722^2 + 38923^2 .

It is a cyclic number.

It is not a de Polignac number, because 123122033213 - 216 = 123121967677 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123122033413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61561016606 + 61561016607.

It is an arithmetic number, because the mean of its divisors is an integer number (61561016607).

Almost surely, 2123122033213 is an apocalyptic number.

It is an amenable number.

123122033213 is a deficient number, since it is larger than the sum of its proper divisors (1).

123122033213 is an equidigital number, since it uses as much as digits as its factorization.

123122033213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 123122033213 its reverse (312330221321), we get a palindrome (435452254534).

The spelling of 123122033213 in words is "one hundred twenty-three billion, one hundred twenty-two million, thirty-three thousand, two hundred thirteen".