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13001231213223 = 3114342179217223
BaseRepresentation
bin1011110100110001010111…
…0001001010001010100111
31201000220110011020122022020
42331030111301022022213
53201003010142310343
643352403321434223
72511210425630331
oct275142561121247
951026404218266
1013001231213223
114162878095490
12155b88603b973
1373401aa8ab56
1432d39775c451
151782d27dab83
hexbd315c4a2a7

13001231213223 has 32 divisors (see below), whose sum is σ = 19351217571840. Its totient is φ = 7696071193440.

The previous prime is 13001231213219. The next prime is 13001231213249. The reversal of 13001231213223 is 32231213210031.

13001231213223 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13001231213223 - 22 = 13001231213219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13001231213193 and 13001231213202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13001231213123) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 59743390 + ... + 59960612.

It is an arithmetic number, because the mean of its divisors is an integer number (604725549120).

Almost surely, 213001231213223 is an apocalyptic number.

13001231213223 is a deficient number, since it is larger than the sum of its proper divisors (6349986358617).

13001231213223 is a wasteful number, since it uses less digits than its factorization.

13001231213223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259459.

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 13001231213223 its reverse (32231213210031), we get a palindrome (45232444423254).

The spelling of 13001231213223 in words is "thirteen trillion, one billion, two hundred thirty-one million, two hundred thirteen thousand, two hundred twenty-three".

Divisors: 1 3 11 33 43 129 473 1419 42179 126537 217223 463969 651669 1391907 1813697 2389453 5441091 7168359 9340589 19950667 28021767 59852001 102746479 308239437 9162248917 27486746751 100784738087 302354214261 393976703431 1181930110293 4333743737741 13001231213223