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331131232112122 = 21312735816619697
BaseRepresentation
bin100101101001010010111111…
…1011101101100110111111010
31121102102211120220102210112101
41023102211333131230313322
5321400223230410041442
63132131331001334014
7126514304422364311
oct11322457735546772
91542384526383471
10331131232112122
1196565a6aa54682
123117b54b79730a
131129c706040040
145baaba11c3278
15284373ae92cb7
hex12d297f76cdfa

331131232112122 has 8 divisors (see below), whose sum is σ = 534904298027316. Its totient is φ = 152829799436352.

The previous prime is 331131232112027. The next prime is 331131232112123. The reversal of 331131232112122 is 221211232131133.

It can be written as a sum of positive squares in 2 ways, for example, as 330813565734961 + 317666377161 = 18188281^2 + 563619^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (331131232112123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6367908309823 + ... + 6367908309874.

Almost surely, 2331131232112122 is an apocalyptic number.

331131232112122 is a deficient number, since it is larger than the sum of its proper divisors (203773065915194).

331131232112122 is a wasteful number, since it uses less digits than its factorization.

331131232112122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12735816619712.

The product of its digits is 2592, while the sum is 28.

Adding to 331131232112122 its reverse (221211232131133), we get a palindrome (552342464243255).

The spelling of 331131232112122 in words is "three hundred thirty-one trillion, one hundred thirty-one billion, two hundred thirty-two million, one hundred twelve thousand, one hundred twenty-two".

Divisors: 1 2 13 26 12735816619697 25471633239394 165565616056061 331131232112122