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12312231113321 = 192311975584723
BaseRepresentation
bin1011001100101010101000…
…1010010111001001101001
31121121001000120000001202122
42303022222022113021221
53103210422131111241
642104054430241025
72410346364462356
oct263125212271151
947531016001678
1012312231113321
113a17651536617
12146a239356175
136b4066511c49
14307cb52dd62d
151654092a304b
hexb32aa297269

12312231113321 has 24 divisors (see below), whose sum is σ = 13481613091584. Its totient is φ = 11230652553120.

The previous prime is 12312231113297. The next prime is 12312231113333. The reversal of 12312231113321 is 12331113221321.

It is not a de Polignac number, because 12312231113321 - 238 = 12037353206377 is a prime.

It is a super-2 number, since 2×123122311133212 (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12312231113381) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 587735 + ... + 4996988.

It is an arithmetic number, because the mean of its divisors is an integer number (561733878816).

Almost surely, 212312231113321 is an apocalyptic number.

It is an amenable number.

12312231113321 is a deficient number, since it is larger than the sum of its proper divisors (1169381978263).

12312231113321 is a wasteful number, since it uses less digits than its factorization.

12312231113321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5584989 (or 5584970 counting only the distinct ones).

The product of its digits is 1296, while the sum is 26.

Adding to 12312231113321 its reverse (12331113221321), we get a palindrome (24643344334642).

The spelling of 12312231113321 in words is "twelve trillion, three hundred twelve billion, two hundred thirty-one million, one hundred thirteen thousand, three hundred twenty-one".

Divisors: 1 19 31 197 361 589 3743 6107 11191 71117 116033 2204627 5584723 106109737 173126413 1100190431 2016085003 3289401847 20903618189 34105903361 62498635093 397168745591 648012163859 12312231113321