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12404212111 = 195931100933
BaseRepresentation
bin10111000110101100…
…10100000110001111
31012000110201021010101
423203112110012033
5200400434241421
65410505151531
7616250030464
oct134326240617
935013637111
1012404212111
115295944175
1224a218b5a7
131228b1c3a5
1485959b66b
154c8eb7191
hex2e359418f

12404212111 has 8 divisors (see below), whose sum is σ = 13079095920. Its totient is φ = 11731531392.

The previous prime is 12404212109. The next prime is 12404212141. The reversal of 12404212111 is 11121240421.

It is a happy number.

12404212111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12404212111 - 21 = 12404212109 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12404212141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 539200 + ... + 561733.

It is an arithmetic number, because the mean of its divisors is an integer number (1634886990).

Almost surely, 212404212111 is an apocalyptic number.

12404212111 is a deficient number, since it is larger than the sum of its proper divisors (674883809).

12404212111 is a wasteful number, since it uses less digits than its factorization.

12404212111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1101545.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 12404212111 its reverse (11121240421), we get a palindrome (23525452532).

The spelling of 12404212111 in words is "twelve billion, four hundred four million, two hundred twelve thousand, one hundred eleven".

Divisors: 1 19 593 11267 1100933 20917727 652853269 12404212111