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1243003244401 = 9246113443541
BaseRepresentation
bin10010000101101000110…
…001000100111101110001
311101211102000220021022001
4102011220301010331301
5130331132312310101
62351010001214001
7155542531151302
oct22055061047561
94354360807261
101243003244401
1143a177a210a6
12180a9b331301
13902a3919459
14442399047a9
15225001a7901
hex12168c44f71

1243003244401 has 4 divisors (see below), whose sum is σ = 1243016780404. Its totient is φ = 1242989708400.

The previous prime is 1243003244393. The next prime is 1243003244473. The reversal of 1243003244401 is 1044423003421.

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 554101584400 + 688901660001 = 744380^2 + 830001^2 .

It is a cyclic number.

It is not a de Polignac number, because 1243003244401 - 23 = 1243003244393 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 1243003244401.

It is not an unprimeable number, because it can be changed into a prime (1243003244491) 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, 6629310 + ... + 6814231.

It is an arithmetic number, because the mean of its divisors is an integer number (310754195101).

Almost surely, 21243003244401 is an apocalyptic number.

It is an amenable number.

1243003244401 is a deficient number, since it is larger than the sum of its proper divisors (13536003).

1243003244401 is an equidigital number, since it uses as much as digits as its factorization.

1243003244401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13536002.

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 1243003244401 its reverse (1044423003421), we get a palindrome (2287426247822).

The spelling of 1243003244401 in words is "one trillion, two hundred forty-three billion, three million, two hundred forty-four thousand, four hundred one".

Divisors: 1 92461 13443541 1243003244401