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230120233211 = 1120920021201
BaseRepresentation
bin1101011001010000111…
…1000001100011111011
3210222222110211001211102
43112110033001203323
512232241234430321
6253414335122015
722424410465001
oct3262417014373
9728873731742
10230120233211
1189658966220
123872297330b
131891459038b
14b1d04a6a71
155ebc8ecc0b
hex35943c18fb

230120233211 has 4 divisors (see below), whose sum is σ = 251040254424. Its totient is φ = 209200212000.

The previous prime is 230120233207. The next prime is 230120233289. The reversal of 230120233211 is 112332021032.

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

It is a cyclic number.

It is not a de Polignac number, because 230120233211 - 22 = 230120233207 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (230120233201) 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, 10460010590 + ... + 10460010611.

It is an arithmetic number, because the mean of its divisors is an integer number (62760063606).

Almost surely, 2230120233211 is an apocalyptic number.

230120233211 is a deficient number, since it is larger than the sum of its proper divisors (20920021213).

230120233211 is a wasteful number, since it uses less digits than its factorization.

230120233211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20920021212.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 230120233211 its reverse (112332021032), we get a palindrome (342452254243).

The spelling of 230120233211 in words is "two hundred thirty billion, one hundred twenty million, two hundred thirty-three thousand, two hundred eleven".

Divisors: 1 11 20920021201 230120233211