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13122232231023 = 332950333317927
BaseRepresentation
bin1011111011110100000111…
…1111011010010001101111
31201110110202221000020002000
42332331001333122101233
53204443312422343043
643524134213303343
72523023101413066
oct276750177322157
951413687006060
1013122232231023
1141aa11aaa9043
12157b215034b53
1374256247a736
143351959d91dd
1517b5155c42d3
hexbef41fda46f

13122232231023 has 32 divisors (see below), whose sum is σ = 20150682854400. Its totient is φ = 8429701821408.

The previous prime is 13122232230971. The next prime is 13122232231039. The reversal of 13122232231023 is 32013223222131.

13122232231023 is a `hidden beast` number, since 1 + 3 + 1 + 2 + 2 + 2 + 322 + 310 + 23 = 666.

It is not a de Polignac number, because 13122232231023 - 29 = 13122232230511 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13122232231063) 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, 16265115 + ... + 17052812.

It is an arithmetic number, because the mean of its divisors is an integer number (629708839200).

Almost surely, 213122232231023 is an apocalyptic number.

13122232231023 is a deficient number, since it is larger than the sum of its proper divisors (7028450623377).

13122232231023 is a wasteful number, since it uses less digits than its factorization.

13122232231023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33318468 (or 33318462 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

Adding to 13122232231023 its reverse (32013223222131), we get a palindrome (45135455453154).

The spelling of 13122232231023 in words is "thirteen trillion, one hundred twenty-two billion, two hundred thirty-two million, two hundred thirty-one thousand, twenty-three".

Divisors: 1 3 9 27 29 87 261 503 783 1509 4527 13581 14587 43761 131283 393849 33317927 99953781 299861343 899584029 966219883 2898659649 8695978947 16758917281 26087936841 50276751843 150830255529 452490766587 486008601149 1458025803447 4374077410341 13122232231023