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230111222101 = 997230803633
BaseRepresentation
bin1101011001001110110…
…0101001100101010101
3210222221211212020220121
43112103230221211111
512232231433101401
6253413414031541
722424241054355
oct3262354514525
9728854766817
10230111222101
1189653871022
123871b9485b1
1318912756967
14b1cd1dcb65
155ebbc1cca1
hex3593b29955

230111222101 has 4 divisors (see below), whose sum is σ = 230342026732. Its totient is φ = 229880417472.

The previous prime is 230111222053. The next prime is 230111222123. The reversal of 230111222101 is 101222111032.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 93407251876 + 136703970225 = 305626^2 + 369735^2 .

It is a cyclic number.

It is not a de Polignac number, because 230111222101 - 225 = 230077667669 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 (230111622101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 115400820 + ... + 115402813.

It is an arithmetic number, because the mean of its divisors is an integer number (57585506683).

Almost surely, 2230111222101 is an apocalyptic number.

It is an amenable number.

230111222101 is a deficient number, since it is larger than the sum of its proper divisors (230804631).

230111222101 is an equidigital number, since it uses as much as digits as its factorization.

230111222101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230804630.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 230111222101 its reverse (101222111032), we get a palindrome (331333333133).

The spelling of 230111222101 in words is "two hundred thirty billion, one hundred eleven million, two hundred twenty-two thousand, one hundred one".

Divisors: 1 997 230803633 230111222101