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12013312301 = 52123058181
BaseRepresentation
bin10110011000000110…
…01001100100101101
31011000020011111101122
423030003021210231
5144100401443201
65304022550325
7603462320054
oct131403114455
934006144348
1012013312301
115105224381
1223b32983a5
131195b45c23
1481d6c539b
154a49eee1b
hex2cc0c992d

12013312301 has 4 divisors (see below), whose sum is σ = 12036371004. Its totient is φ = 11990253600.

The previous prime is 12013312279. The next prime is 12013312303. The reversal of 12013312301 is 10321331021.

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 2634358276 + 9378954025 = 51326^2 + 96845^2 .

It is a cyclic number.

It is not a de Polignac number, because 12013312301 - 26 = 12013312237 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 12013312301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12013312303) 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, 11528570 + ... + 11529611.

It is an arithmetic number, because the mean of its divisors is an integer number (3009092751).

Almost surely, 212013312301 is an apocalyptic number.

It is an amenable number.

12013312301 is a deficient number, since it is larger than the sum of its proper divisors (23058703).

12013312301 is an equidigital number, since it uses as much as digits as its factorization.

12013312301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23058702.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 12013312301 its reverse (10321331021), we get a palindrome (22334643322).

The spelling of 12013312301 in words is "twelve billion, thirteen million, three hundred twelve thousand, three hundred one".

Divisors: 1 521 23058181 12013312301