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12311231031310 = 257623116149901
BaseRepresentation
bin1011001100100110111010…
…0011010110100000001110
31121120221102212011122011011
42303021232203112200032
53103201400121000220
642103411303115434
72410312532100361
oct263115643264016
947527385148134
1012311231031310
113a17188a67162
121469bba442b7a
136b3c37276643
14307c1c5700d8
1516539b5a765a
hexb326e8d680e

12311231031310 has 16 divisors (see below), whose sum is σ = 22160507926752. Its totient is φ = 4924427508000.

The previous prime is 12311231031293. The next prime is 12311231031343. The reversal of 12311231031310 is 1313013211321.

It is a super-2 number, since 2×123112310313102 (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7312641 + ... + 8837260.

It is an arithmetic number, because the mean of its divisors is an integer number (1385031745422).

Almost surely, 212311231031310 is an apocalyptic number.

12311231031310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12311231031310 is a deficient number, since it is larger than the sum of its proper divisors (9849276895442).

12311231031310 is a wasteful number, since it uses less digits than its factorization.

12311231031310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16226139.

The product of its (nonzero) digits is 324, while the sum is 22.

Adding to 12311231031310 its reverse (1313013211321), we get a palindrome (13624244242631).

The spelling of 12311231031310 in words is "twelve trillion, three hundred eleven billion, two hundred thirty-one million, thirty-one thousand, three hundred ten".

Divisors: 1 2 5 10 76231 152462 381155 762310 16149901 32299802 80749505 161499010 1231123103131 2462246206262 6155615515655 12311231031310