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213111312230 = 2521311131223
BaseRepresentation
bin1100011001111001101…
…1001000111101100110
3202101002002112100122002
43012132123020331212
511442422443442410
6241522455005302
721253045160045
oct3063633107546
9671062470562
10213111312230
118241a864133
1235376669832
13171337955ab
14a45954455c
1558245627a5
hex319e6c8f66

213111312230 has 8 divisors (see below), whose sum is σ = 383600362032. Its totient is φ = 85244524888.

The previous prime is 213111312217. The next prime is 213111312241. The reversal of 213111312230 is 32213111312.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10655565602 + ... + 10655565621.

It is an arithmetic number, because the mean of its divisors is an integer number (47950045254).

Almost surely, 2213111312230 is an apocalyptic number.

213111312230 is a deficient number, since it is larger than the sum of its proper divisors (170489049802).

213111312230 is a wasteful number, since it uses less digits than its factorization.

213111312230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21311131230.

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

Adding to 213111312230 its reverse (32213111312), we get a palindrome (245324423542).

The spelling of 213111312230 in words is "two hundred thirteen billion, one hundred eleven million, three hundred twelve thousand, two hundred thirty".

Divisors: 1 2 5 10 21311131223 42622262446 106555656115 213111312230