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231332243322012 = 223711257724462859
BaseRepresentation
bin110100100110010100111100…
…001100000011010010011100
31010100002010221210011201221020
4310212110330030003102130
5220310121413242301022
62140000322050404140
766504126433265610
oct6446247414032234
91110063853151836
10231332243322012
11677894a9599658
1221b418a4290650
139c106c9879911
14411a77c8bb340
151bb27387e035c
hexd2653c30349c

231332243322012 has 48 divisors (see below), whose sum is σ = 616891487089920. Its totient is φ = 66094336852992.

The previous prime is 231332243321989. The next prime is 231332243322023. The reversal of 231332243322012 is 210223342233132.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2774962 + ... + 21687897.

It is an arithmetic number, because the mean of its divisors is an integer number (12851905981040).

Almost surely, 2231332243322012 is an apocalyptic number.

It is an amenable number.

231332243322012 is an abundant number, since it is smaller than the sum of its proper divisors (385559243767908).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231332243322012 is a wasteful number, since it uses less digits than its factorization.

231332243322012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24575450 (or 24575448 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 33.

Adding to 231332243322012 its reverse (210223342233132), we get a palindrome (441555585555144).

The spelling of 231332243322012 in words is "two hundred thirty-one trillion, three hundred thirty-two billion, two hundred forty-three million, three hundred twenty-two thousand, twelve".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 112577 225154 337731 450308 675462 788039 1350924 1576078 2364117 3152156 4728234 9456468 24462859 48925718 73388577 97851436 146777154 171240013 293554308 342480026 513720039 684960052 1027440078 2054880156 2753955277643 5507910555286 8261865832929 11015821110572 16523731665858 19277686943501 33047463331716 38555373887002 57833060830503 77110747774004 115666121661006 231332243322012