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1031233231112 = 237130729140863
BaseRepresentation
bin11110000000110100100…
…10100101100100001000
310122120210102020221220112
433000122102211210020
5113343431201343422
62105424135013452
7134334630556610
oct17003222454410
93576712227815
101031233231112
11368386302797
12147a39b0a288
1376324cbb996
1437caa591a40
151bc58791ee2
hexf01a4a5908

1031233231112 has 32 divisors (see below), whose sum is σ = 2209818086400. Its totient is φ = 441950580864.

The previous prime is 1031233231043. The next prime is 1031233231201. The reversal of 1031233231112 is 2111323321301.

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, 7250393 + ... + 7391255.

It is an arithmetic number, because the mean of its divisors is an integer number (69056815200).

Almost surely, 21031233231112 is an apocalyptic number.

It is an amenable number.

1031233231112 is an abundant number, since it is smaller than the sum of its proper divisors (1178584855288).

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

1031233231112 is a wasteful number, since it uses less digits than its factorization.

1031233231112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271605 (or 271601 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 1031233231112 its reverse (2111323321301), we get a palindrome (3142556552413).

The spelling of 1031233231112 in words is "one trillion, thirty-one billion, two hundred thirty-three million, two hundred thirty-one thousand, one hundred twelve".

Divisors: 1 2 4 7 8 14 28 56 130729 140863 261458 281726 522916 563452 915103 986041 1045832 1126904 1830206 1972082 3660412 3944164 7320824 7888328 18414879127 36829758254 73659516508 128904153889 147319033016 257808307778 515616615556 1031233231112