Search a number
-
+
12303130321 = 61201690661
BaseRepresentation
bin10110111010101001…
…01101111011010001
31011202102111202222101
423131110231323101
5200144100132241
65352454440401
7613611611416
oct133524557321
934672452871
1012303130321
1152438839a9
122474363101
131210bba391
14849da810d
154c019be31
hex2dd52ded1

12303130321 has 4 divisors (see below), whose sum is σ = 12504821044. Its totient is φ = 12101439600.

The previous prime is 12303130303. The next prime is 12303130349.

12303130321 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 304118721 + 11999011600 = 17439^2 + 109540^2 .

It is a cyclic number.

It is not a de Polignac number, because 12303130321 - 25 = 12303130289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12303130361) 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, 100845270 + ... + 100845391.

It is an arithmetic number, because the mean of its divisors is an integer number (3126205261).

Almost surely, 212303130321 is an apocalyptic number.

It is an amenable number.

12303130321 is a deficient number, since it is larger than the sum of its proper divisors (201690723).

12303130321 is an equidigital number, since it uses as much as digits as its factorization.

12303130321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201690722.

The product of its (nonzero) digits is 324, while the sum is 19.

The spelling of 12303130321 in words is "twelve billion, three hundred three million, one hundred thirty thousand, three hundred twenty-one".

Divisors: 1 61 201690661 12303130321