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231312122222303 = 1274626733936593
BaseRepresentation
bin110100100110000010001100…
…111000001001011011011111
31010100000020000111202222010002
4310212002030320021123133
5220304304211242103203
62135543153313404515
766502515010620413
oct6446021470113337
91110006014688102
10231312122222303
1167780a13777631
1221b39a0986973b
139c0b841081665
1441197d04b0d43
151bb1e5c102d88
hexd2608ce096df

231312122222303 has 8 divisors (see below), whose sum is σ = 233134040621568. Its totient is φ = 229490212621824.

The previous prime is 231312122222267. The next prime is 231312122222317. The reversal of 231312122222303 is 303222221213132.

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 231312122222303 - 236 = 231243402745567 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 (231312122222903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56791175 + ... + 60727767.

It is an arithmetic number, because the mean of its divisors is an integer number (29141755077696).

Almost surely, 2231312122222303 is an apocalyptic number.

231312122222303 is a deficient number, since it is larger than the sum of its proper divisors (1821918399265).

231312122222303 is a wasteful number, since it uses less digits than its factorization.

231312122222303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4399393.

The product of its (nonzero) digits is 10368, while the sum is 29.

Adding to 231312122222303 its reverse (303222221213132), we get a palindrome (534534343435435).

The spelling of 231312122222303 in words is "two hundred thirty-one trillion, three hundred twelve billion, one hundred twenty-two million, two hundred twenty-two thousand, three hundred three".

Divisors: 1 127 462673 3936593 58759471 499947311 1821355293089 231312122222303