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13122121201 = 76130730963
BaseRepresentation
bin11000011100010001…
…11010110111110001
31020212111120211020221
430032020322313301
5203333230334301
610010032333041
7643115122060
oct141610726761
936774524227
1013122121201
115624105972
1226626a4181
13131178c277
148c6a781d7
1551c025da1
hex30e23adf1

13122121201 has 8 divisors (see below), whose sum is σ = 15242558144. Its totient is φ = 11063146320.

The previous prime is 13122121171. The next prime is 13122121219. The reversal of 13122121201 is 10212122131.

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 13122121201 - 225 = 13088566769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13122121241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15365055 + ... + 15365908.

It is an arithmetic number, because the mean of its divisors is an integer number (1905319768).

Almost surely, 213122121201 is an apocalyptic number.

It is an amenable number.

13122121201 is a deficient number, since it is larger than the sum of its proper divisors (2120436943).

13122121201 is an equidigital number, since it uses as much as digits as its factorization.

13122121201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30731031.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 13122121201 its reverse (10212122131), we get a palindrome (23334243332).

The spelling of 13122121201 in words is "thirteen billion, one hundred twenty-two million, one hundred twenty-one thousand, two hundred one".

Divisors: 1 7 61 427 30730963 215116741 1874588743 13122121201