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123223331122213 = 727931832428603
BaseRepresentation
bin11100000001001000101010…
…111000010010110000100101
3121011022000221210221210202111
4130001020222320102300211
5112122342340231402323
61114024003345241021
734645410005515600
oct3401105270226045
9534260853853674
10123223331122213
11362987a2aa1573
12119a1610333171
13539abaab116aa
1422600808cb337
15e3a4c5738c0d
hex70122ae12c25

123223331122213 has 12 divisors (see below), whose sum is σ = 145155874434240. Its totient is φ = 104283036100152.

The previous prime is 123223331122159. The next prime is 123223331122271. The reversal of 123223331122213 is 312221133322321.

It is not a de Polignac number, because 123223331122213 - 213 = 123223331114021 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 (123223331122813) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15916210431 + ... + 15916218172.

It is an arithmetic number, because the mean of its divisors is an integer number (12096322869520).

Almost surely, 2123223331122213 is an apocalyptic number.

It is an amenable number.

123223331122213 is a deficient number, since it is larger than the sum of its proper divisors (21932543312027).

123223331122213 is an equidigital number, since it uses as much as digits as its factorization.

123223331122213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31832428696 (or 31832428689 counting only the distinct ones).

The product of its digits is 15552, while the sum is 31.

Adding to 123223331122213 its reverse (312221133322321), we get a palindrome (435444464444534).

The spelling of 123223331122213 in words is "one hundred twenty-three trillion, two hundred twenty-three billion, three hundred thirty-one million, one hundred twenty-two thousand, two hundred thirteen".

Divisors: 1 7 49 79 553 3871 31832428603 222827000221 1559789001547 2514761859637 17603333017459 123223331122213