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331121301112 = 23723325377169
BaseRepresentation
bin1001101000110000101…
…11100001011001111000
31011122200102010221002001
410310120113201121320
520411114023113422
6412040502350344
732631331422550
oct4643027413170
91148612127061
10331121301112
11118478384468
125420ba2b3b4
13252bc5c2094
1412052472160
15892e97a227
hex4d185e1678

331121301112 has 32 divisors (see below), whose sum is σ = 712590933600. Its totient is φ = 141300071424.

The previous prime is 331121301097. The next prime is 331121301127. The reversal of 331121301112 is 211103121133.

It is an interprime number because it is at equal distance from previous prime (331121301097) and next prime (331121301127).

It is a self number, because there is not a number n which added to its sum of digits gives 331121301112.

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, 12675537 + ... + 12701632.

It is an arithmetic number, because the mean of its divisors is an integer number (22268466675).

Almost surely, 2331121301112 is an apocalyptic number.

It is an amenable number.

331121301112 is an abundant number, since it is smaller than the sum of its proper divisors (381469632488).

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

331121301112 is a wasteful number, since it uses less digits than its factorization.

331121301112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25377415 (or 25377411 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 331121301112 its reverse (211103121133), we get a palindrome (542224422245).

The spelling of 331121301112 in words is "three hundred thirty-one billion, one hundred twenty-one million, three hundred one thousand, one hundred twelve".

Divisors: 1 2 4 7 8 14 28 56 233 466 932 1631 1864 3262 6524 13048 25377169 50754338 101508676 177640183 203017352 355280366 710560732 1421121464 5912880377 11825760754 23651521508 41390162639 47303043016 82780325278 165560650556 331121301112