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230331221111 = 7325511236857
BaseRepresentation
bin1101011010000011001…
…1111000010001110111
3211000112011211100211002
43112200303320101313
512233204243033421
6253451313233515
722432552035035
oct3264063702167
9730464740732
10230331221111
1189756a73592
123878156289b
13189491c3aa4
14b210509555
155ed11c7b0b
hex35a0cf8477

230331221111 has 8 divisors (see below), whose sum is σ = 233578159584. Its totient is φ = 227086761600.

The previous prime is 230331221089. The next prime is 230331221173. The reversal of 230331221111 is 111122133032.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 230331221111 - 26 = 230331221047 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 (230331221011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 432206 + ... + 804651.

It is an arithmetic number, because the mean of its divisors is an integer number (29197269948).

Almost surely, 2230331221111 is an apocalyptic number.

230331221111 is a deficient number, since it is larger than the sum of its proper divisors (3246938473).

230331221111 is a wasteful number, since it uses less digits than its factorization.

230331221111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1239481.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 230331221111 its reverse (111122133032), we get a palindrome (341453354143).

The spelling of 230331221111 in words is "two hundred thirty billion, three hundred thirty-one million, two hundred twenty-one thousand, one hundred eleven".

Divisors: 1 73 2551 186223 1236857 90290561 3155222207 230331221111