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121310313304 = 23231316350087
BaseRepresentation
bin111000011111010101…
…0000111101101011000
3102121010022202102102211
41300332222013231120
53441420420011204
6131421301004504
711523116435545
oct1607652075530
9377108672384
10121310313304
11474a1566984
121b6166b3734
13b5937c369b
145c2b38dbcc
153250031804
hex1c3ea87b58

121310313304 has 32 divisors (see below), whose sum is σ = 237369035520. Its totient is φ = 58012410016.

The previous prime is 121310313301. The next prime is 121310313323. The reversal of 121310313304 is 403313013121.

It is a super-2 number, since 2×1213103133042 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121310313301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2396949 + ... + 2447035.

It is an arithmetic number, because the mean of its divisors is an integer number (7417782360).

Almost surely, 2121310313304 is an apocalyptic number.

It is an amenable number.

121310313304 is a deficient number, since it is larger than the sum of its proper divisors (116058722216).

121310313304 is a wasteful number, since it uses less digits than its factorization.

121310313304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63279 (or 63275 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 121310313304 its reverse (403313013121), we get a palindrome (524623326425).

The spelling of 121310313304 in words is "one hundred twenty-one billion, three hundred ten million, three hundred thirteen thousand, three hundred four".

Divisors: 1 2 4 8 23 46 92 184 13163 26326 50087 52652 100174 105304 200348 302749 400696 605498 1152001 1210996 2304002 2421992 4608004 9216008 659295181 1318590362 2637180724 5274361448 15163789163 30327578326 60655156652 121310313304