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331201111113 = 33191933333997
BaseRepresentation
bin1001101000111010001…
…11111110010001001001
31011122212222022200211000
410310131013332101021
520411244441023423
6412052433125213
732633320665015
oct4643507762111
91148788280730
10331201111113
11118509435944
12542326b9809
1325302cb6b32
141205ccc9545
158936992843
hex4d1d1fe449

331201111113 has 32 divisors (see below), whose sum is σ = 516761705600. Its totient is φ = 209070808128.

The previous prime is 331201111093. The next prime is 331201111127. The reversal of 331201111113 is 311111102133.

It is not a de Polignac number, because 331201111113 - 216 = 331201045577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (331201118113) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 824631 + ... + 1158627.

It is an arithmetic number, because the mean of its divisors is an integer number (16148803300).

Almost surely, 2331201111113 is an apocalyptic number.

It is an amenable number.

331201111113 is a deficient number, since it is larger than the sum of its proper divisors (185560594487).

331201111113 is a wasteful number, since it uses less digits than its factorization.

331201111113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335958 (or 335952 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 18.

Adding to 331201111113 its reverse (311111102133), we get a palindrome (642312213246).

The spelling of 331201111113 in words is "three hundred thirty-one billion, two hundred one million, one hundred eleven thousand, one hundred thirteen".

Divisors: 1 3 9 19 27 57 171 513 1933 5799 17397 36727 52191 110181 330543 333997 991629 1001991 3005973 6345943 9017919 19037829 57113487 171340461 645616201 1936848603 5810545809 12266707819 17431637427 36800123457 110400370371 331201111113