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13012230122021 = 132472516526697
BaseRepresentation
bin1011110101011010010101…
…0110101010101000100101
31201001221211200122002200202
42331112211112222220211
53201143021402401041
643401422550320245
72512050123046664
oct275264526525045
951057750562622
1013012230122021
114167501748459
121561a35659085
137350816c2900
1432db1c426ddb
15178728211a9b
hexbd5a55aaa25

13012230122021 has 24 divisors (see below), whose sum is σ = 14447289838464. Its totient is φ = 11708892624000.

The previous prime is 13012230121921. The next prime is 13012230122039. The reversal of 13012230122021 is 12022103221031.

It is not a de Polignac number, because 13012230122021 - 210 = 13012230120997 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13012230121984 and 13012230122002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13012230122821) 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 23 ways as a sum of consecutive naturals, for example, 1269656 + ... + 5257041.

It is an arithmetic number, because the mean of its divisors is an integer number (601970409936).

Almost surely, 213012230122021 is an apocalyptic number.

It is an amenable number.

13012230122021 is a deficient number, since it is larger than the sum of its proper divisors (1435059716443).

13012230122021 is a wasteful number, since it uses less digits than its factorization.

13012230122021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6527021 (or 6527008 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 13012230122021 its reverse (12022103221031), we get a palindrome (25034333343052).

The spelling of 13012230122021 in words is "thirteen trillion, twelve billion, two hundred thirty million, one hundred twenty-two thousand, twenty-one".

Divisors: 1 13 47 169 251 611 3263 7943 11797 42419 153361 1993693 6526697 84847061 306754759 1103011793 1638200947 3987811867 21296612311 51841554271 76995444509 276855960043 1000940778617 13012230122021