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13112414232421 = 723241813368081
BaseRepresentation
bin1011111011001111100011…
…0010101101111101100101
31201102112102200201012221011
42332303320302231331211
53204313211020414141
643515432051422221
72522224563663340
oct276637062557545
951375380635834
1013112414232421
1141a5a41aa3409
121579334bb4971
137416593b50ca
14334903ad1457
1517b13d6b7881
hexbecf8cadf65

13112414232421 has 16 divisors (see below), whose sum is σ = 15637816113408. Its totient is φ = 10750103020800.

The previous prime is 13112414232409. The next prime is 13112414232431. The reversal of 13112414232421 is 12423241421131.

It is a cyclic number.

It is not a de Polignac number, because 13112414232421 - 27 = 13112414232293 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 (13112414232431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2209101 + ... + 5577181.

It is an arithmetic number, because the mean of its divisors is an integer number (977363507088).

Almost surely, 213112414232421 is an apocalyptic number.

It is an amenable number.

13112414232421 is a deficient number, since it is larger than the sum of its proper divisors (2525401880987).

13112414232421 is a wasteful number, since it uses less digits than its factorization.

13112414232421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3392292.

The product of its digits is 9216, while the sum is 31.

Adding to 13112414232421 its reverse (12423241421131), we get a palindrome (25535655653552).

The spelling of 13112414232421 in words is "thirteen trillion, one hundred twelve billion, four hundred fourteen million, two hundred thirty-two thousand, four hundred twenty-one".

Divisors: 1 7 23 161 24181 169267 556163 3368081 3893141 23576567 77465863 542261041 81443566661 570104966627 1873202033203 13112414232421