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122123223233213 = 859142169060807
BaseRepresentation
bin11011110001001000000111…
…010101101111001010111101
3121000101212101101212201010212
4123301020013111233022331
5112001331330121430323
61111422344555242205
734503053213661056
oct3361100725571275
9530355341781125
10122123223233213
1135a04193850a14
1211844370449365
13531b22a88cb97
142222b1cd7b72d
15e1ba8a575b78
hex6f120756f2bd

122123223233213 has 4 divisors (see below), whose sum is σ = 122265392294880. Its totient is φ = 121981054171548.

The previous prime is 122123223233069. The next prime is 122123223233279. The reversal of 122123223233213 is 312332322321221.

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 122123223233213 - 210 = 122123223232189 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 122123223233213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122123223233293) 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, 71084529545 + ... + 71084531262.

It is an arithmetic number, because the mean of its divisors is an integer number (30566348073720).

Almost surely, 2122123223233213 is an apocalyptic number.

It is an amenable number.

122123223233213 is a deficient number, since it is larger than the sum of its proper divisors (142169061667).

122123223233213 is an equidigital number, since it uses as much as digits as its factorization.

122123223233213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142169061666.

The product of its digits is 31104, while the sum is 32.

Adding to 122123223233213 its reverse (312332322321221), we get a palindrome (434455545554434).

The spelling of 122123223233213 in words is "one hundred twenty-two trillion, one hundred twenty-three billion, two hundred twenty-three million, two hundred thirty-three thousand, two hundred thirteen".

Divisors: 1 859 142169060807 122123223233213