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13121312330101 = 59222395124239
BaseRepresentation
bin1011111011110000101100…
…1010010001000101110101
31201110101101211001102020111
42332330023022101011311
53204434421424030401
643523503032503021
72522661231400153
oct276741312210565
951411354042214
1013121312330101
1141a9798813948
12157abb8b4aa71
13742446a06a71
1433510977c3d3
1517b4ae965e51
hexbef0b291175

13121312330101 has 4 divisors (see below), whose sum is σ = 13343707454400. Its totient is φ = 12898917205804.

The previous prime is 13121312330069. The next prime is 13121312330233. The reversal of 13121312330101 is 10103321312131.

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.

It is a cyclic number.

It is not a de Polignac number, because 13121312330101 - 25 = 13121312330069 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 (13121312310101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 111197562061 + ... + 111197562178.

It is an arithmetic number, because the mean of its divisors is an integer number (3335926863600).

Almost surely, 213121312330101 is an apocalyptic number.

It is an amenable number.

13121312330101 is a deficient number, since it is larger than the sum of its proper divisors (222395124299).

13121312330101 is an equidigital number, since it uses as much as digits as its factorization.

13121312330101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222395124298.

The product of its (nonzero) digits is 324, while the sum is 22.

Adding to 13121312330101 its reverse (10103321312131), we get a palindrome (23224633642232).

The spelling of 13121312330101 in words is "thirteen trillion, one hundred twenty-one billion, three hundred twelve million, three hundred thirty thousand, one hundred one".

Divisors: 1 59 222395124239 13121312330101