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13121100301 = 131100161071
BaseRepresentation
bin11000011100001010…
…00001101000001101
31020212102122221211211
430032011001220031
5203333000202201
610005554414421
7643103340511
oct141605015015
936772587754
1013121100301
115623578951
122662291411
1313114c269a
148c6890141
1551bdc3651
hex30e141a0d

13121100301 has 4 divisors (see below), whose sum is σ = 13221261504. Its totient is φ = 13020939100.

The previous prime is 13121100271. The next prime is 13121100319. The reversal of 13121100301 is 10300112131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 10300112131 = 97106186723.

It is a cyclic number.

It is not a de Polignac number, because 13121100301 - 231 = 10973616653 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 (13121100371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50080405 + ... + 50080666.

It is an arithmetic number, because the mean of its divisors is an integer number (3305315376).

Almost surely, 213121100301 is an apocalyptic number.

It is an amenable number.

13121100301 is a deficient number, since it is larger than the sum of its proper divisors (100161203).

13121100301 is a wasteful number, since it uses less digits than its factorization.

13121100301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100161202.

The product of its (nonzero) digits is 18, while the sum is 13.

Adding to 13121100301 its reverse (10300112131), we get a palindrome (23421212432).

The spelling of 13121100301 in words is "thirteen billion, one hundred twenty-one million, one hundred thousand, three hundred one".

Divisors: 1 131 100161071 13121100301