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331220311110101 = 7371278842900039
BaseRepresentation
bin100101101001111100011110…
…0111111000111000111010101
31121102202100111222021202101202
41023103320330333013013111
5321403203144121010401
63132240302121402245
7126523610036360630
oct11323707477070725
91542670458252352
10331220311110101
119659a8217a9276
1231194870039385
13112a7c310c43ba
145bb1211a58c17
152845c0154506b
hex12d3e3cfc71d5

331220311110101 has 8 divisors (see below), whose sum is σ = 388768241612160. Its totient is φ = 276230066408208.

The previous prime is 331220311110049. The next prime is 331220311110131. The reversal of 331220311110101 is 101011113022133.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-331220311110101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331220311110131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 639421449761 + ... + 639421450278.

It is an arithmetic number, because the mean of its divisors is an integer number (48596030201520).

Almost surely, 2331220311110101 is an apocalyptic number.

It is an amenable number.

331220311110101 is a deficient number, since it is larger than the sum of its proper divisors (57547930502059).

331220311110101 is a wasteful number, since it uses less digits than its factorization.

331220311110101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1278842900083.

The product of its (nonzero) digits is 108, while the sum is 20.

Adding to 331220311110101 its reverse (101011113022133), we get a palindrome (432231424132234).

The spelling of 331220311110101 in words is "three hundred thirty-one trillion, two hundred twenty billion, three hundred eleven million, one hundred ten thousand, one hundred one".

Divisors: 1 7 37 259 1278842900039 8951900300273 47317187301443 331220311110101