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12310220131121 = 1129132172919727
BaseRepresentation
bin1011001100100011001001…
…0011000100101100110001
31121120211211101222120210102
42303020302103010230301
53103142312323143441
642103123112042145
72410245505430453
oct263106223045461
947524741876712
1012310220131121
113a1680a378960
121469977993355
136b3b059c0c53
14307b641c62d3
1516533c97169b
hexb32324c4b31

12310220131121 has 16 divisors (see below), whose sum is σ = 13893467293440. Its totient is φ = 10804387668480.

The previous prime is 12310220131087. The next prime is 12310220131123. The reversal of 12310220131121 is 12113102201321.

It is a cyclic number.

It is not a de Polignac number, because 12310220131121 - 222 = 12310215936817 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12310220131093 and 12310220131102.

It is not an unprimeable number, because it can be changed into a prime (12310220131123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2756360 + ... + 5676086.

It is an arithmetic number, because the mean of its divisors is an integer number (868341705840).

Almost surely, 212310220131121 is an apocalyptic number.

12310220131121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12310220131121 is a deficient number, since it is larger than the sum of its proper divisors (1583247162319).

12310220131121 is a wasteful number, since it uses less digits than its factorization.

12310220131121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2932984.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 12310220131121 its reverse (12113102201321), we get a palindrome (24423322332442).

The spelling of 12310220131121 in words is "twelve trillion, three hundred ten billion, two hundred twenty million, one hundred thirty-one thousand, one hundred twenty-one".

Divisors: 1 11 29 319 13217 145387 383293 2919727 4216223 32116997 84672083 931392913 38590031759 424490349349 1119110921011 12310220131121