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12403301111 = 22754640093
BaseRepresentation
bin10111000110100101…
…10101101011110111
31012000101222222110122
423203102311223313
5200400221113421
65410433442155
7616236214505
oct134322655367
935011888418
1012403301111
115295381783
1224a1a1035b
131228890836
14859401675
154c8d872ab
hex2e34b5af7

12403301111 has 4 divisors (see below), whose sum is σ = 12457941432. Its totient is φ = 12348660792.

The previous prime is 12403301101. The next prime is 12403301153. The reversal of 12403301111 is 11110330421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11110330421 = 18161383041.

It is a cyclic number.

It is not a de Polignac number, because 12403301111 - 26 = 12403301047 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 12403301111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12403301101) 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, 27319820 + ... + 27320273.

It is an arithmetic number, because the mean of its divisors is an integer number (3114485358).

Almost surely, 212403301111 is an apocalyptic number.

12403301111 is a deficient number, since it is larger than the sum of its proper divisors (54640321).

12403301111 is an equidigital number, since it uses as much as digits as its factorization.

12403301111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54640320.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 12403301111 its reverse (11110330421), we get a palindrome (23513631532).

The spelling of 12403301111 in words is "twelve billion, four hundred three million, three hundred one thousand, one hundred eleven".

Divisors: 1 227 54640093 12403301111