Search a number
-
+
12302213123 = 27943440261
BaseRepresentation
bin10110111010100010…
…01110000000000011
31011202100210011211002
423131101032000003
5200143331304443
65352423042215
7613601041364
oct133521160003
934670704732
1012302213123
115243307892
122473ba036b
131210958a65
14849c09b6b
154c006a2b8
hex2dd44e003

12302213123 has 4 divisors (see below), whose sum is σ = 12302681328. Its totient is φ = 12301744920.

The previous prime is 12302213101. The next prime is 12302213167. The reversal of 12302213123 is 32131220321.

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 12302213123 - 26 = 12302213059 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12302213095 and 12302213104.

It is not an unprimeable number, because it can be changed into a prime (12302213923) 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, 192188 + ... + 248073.

It is an arithmetic number, because the mean of its divisors is an integer number (3075670332).

Almost surely, 212302213123 is an apocalyptic number.

12302213123 is a deficient number, since it is larger than the sum of its proper divisors (468205).

12302213123 is an equidigital number, since it uses as much as digits as its factorization.

12302213123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 468204.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 12302213123 its reverse (32131220321), we get a palindrome (44433433444).

The spelling of 12302213123 in words is "twelve billion, three hundred two million, two hundred thirteen thousand, one hundred twenty-three".

Divisors: 1 27943 440261 12302213123