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12161410231 = 37439748717
BaseRepresentation
bin10110101001110000…
…00110010010110111
31011101112211122120011
423110320012102313
5144401310111411
65330433121051
7610241165335
oct132470062267
934345748504
1012161410231
115180887563
1224349b9187
1311ba72a139
14835236b55
154b2a05c21
hex2d4e064b7

12161410231 has 8 divisors (see below), whose sum is σ = 12518564960. Its totient is φ = 11805753888.

The previous prime is 12161410171. The next prime is 12161410249. The reversal of 12161410231 is 13201416121.

12161410231 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 12161410231 - 211 = 12161408183 is a prime.

It is a super-2 number, since 2×121614102312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12161410631) 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, 358116 + ... + 390601.

It is an arithmetic number, because the mean of its divisors is an integer number (1564820620).

Almost surely, 212161410231 is an apocalyptic number.

12161410231 is a deficient number, since it is larger than the sum of its proper divisors (357154729).

12161410231 is an equidigital number, since it uses as much as digits as its factorization.

12161410231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 749193.

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 12161410231 its reverse (13201416121), we get a palindrome (25362826352).

The spelling of 12161410231 in words is "twelve billion, one hundred sixty-one million, four hundred ten thousand, two hundred thirty-one".

Divisors: 1 37 439 16243 748717 27702529 328686763 12161410231