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12301231001 = 20641595961
BaseRepresentation
bin10110111010011010…
…11110001110011001
31011202021221021121012
423131031132032121
5200143103343001
65352350023305
7613556511143
oct133515361631
934667837535
1012301231001
1152427a6a14
1224737a7b35
1312106a3a17
14849a31c93
154bee242bb
hex2dd35e399

12301231001 has 4 divisors (see below), whose sum is σ = 12301847604. Its totient is φ = 12300614400.

The previous prime is 12301230989. The next prime is 12301231027. The reversal of 12301231001 is 10013210321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10013210321 = 74077135173.

It can be written as a sum of positive squares in 2 ways, for example, as 2924213776 + 9377017225 = 54076^2 + 96835^2 .

It is a cyclic number.

It is not a de Polignac number, because 12301231001 - 210 = 12301229977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12301231051) 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, 277340 + ... + 318621.

It is an arithmetic number, because the mean of its divisors is an integer number (3075461901).

Almost surely, 212301231001 is an apocalyptic number.

It is an amenable number.

12301231001 is a deficient number, since it is larger than the sum of its proper divisors (616603).

12301231001 is an equidigital number, since it uses as much as digits as its factorization.

12301231001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 616602.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 12301231001 its reverse (10013210321), we get a palindrome (22314441322).

The spelling of 12301231001 in words is "twelve billion, three hundred one million, two hundred thirty-one thousand, one".

Divisors: 1 20641 595961 12301231001