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12201330131 = 22753750353
BaseRepresentation
bin10110101110100000…
…11000010111010011
31011111022221210100222
423113100120113103
5144442020031011
65334420503255
7611234411024
oct132720302723
934438853328
1012201330131
1151a1372a11
12244624ab2b
1311c5a96393
1483a668c4b
154b628dddb
hex2d74185d3

12201330131 has 4 divisors (see below), whose sum is σ = 12255080712. Its totient is φ = 12147579552.

The previous prime is 12201330107. The next prime is 12201330199. The reversal of 12201330131 is 13103310221.

12201330131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12201330131 is a prime.

It is a super-2 number, since 2×122013301312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12201339131) 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 3 ways as a sum of consecutive naturals, for example, 26874950 + ... + 26875403.

It is an arithmetic number, because the mean of its divisors is an integer number (3063770178).

Almost surely, 212201330131 is an apocalyptic number.

12201330131 is a deficient number, since it is larger than the sum of its proper divisors (53750581).

12201330131 is an equidigital number, since it uses as much as digits as its factorization.

12201330131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53750580.

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

Adding to 12201330131 its reverse (13103310221), we get a palindrome (25304640352).

The spelling of 12201330131 in words is "twelve billion, two hundred one million, three hundred thirty thousand, one hundred thirty-one".

Divisors: 1 227 53750353 12201330131