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12404201311 = 67185137333
BaseRepresentation
bin10111000110101100…
…10001011101011111
31012000110200201022101
423203112101131133
5200400433420221
65410505025531
7616246654135
oct134326213537
935013621271
1012404201311
115295937047
1224a21852a7
131228b174b8
14859597755
154c8eb3d91
hex2e359175f

12404201311 has 4 divisors (see below), whose sum is σ = 12589338712. Its totient is φ = 12219063912.

The previous prime is 12404201297. The next prime is 12404201321. The reversal of 12404201311 is 11310240421.

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

It is a cyclic number.

It is not a de Polignac number, because 12404201311 - 29 = 12404200799 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12404201321) 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, 92568600 + ... + 92568733.

It is an arithmetic number, because the mean of its divisors is an integer number (3147334678).

Almost surely, 212404201311 is an apocalyptic number.

12404201311 is a deficient number, since it is larger than the sum of its proper divisors (185137401).

12404201311 is an equidigital number, since it uses as much as digits as its factorization.

12404201311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185137400.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 12404201311 its reverse (11310240421), we get a palindrome (23714441732).

The spelling of 12404201311 in words is "twelve billion, four hundred four million, two hundred one thousand, three hundred eleven".

Divisors: 1 67 185137333 12404201311