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212330030231231 = 1128036886453807
BaseRepresentation
bin110000010001110011110000…
…000001101110111010111111
31000211210112220212210222221022
4300101303300001232322333
5210312303400214344411
62031331022544454355
762503224042112223
oct6021636001567277
91024715825728838
10212330030231231
11617227296a6670
121b992b9561a3bb
1391628361c8753
143a60b84bbc783
1519832d0c69edb
hexc11cf006eebf

212330030231231 has 8 divisors (see below), whose sum is σ = 231715397731584. Its totient is φ = 192958435644120.

The previous prime is 212330030231203. The next prime is 212330030231237. The reversal of 212330030231231 is 132132030033212.

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 212330030231231 - 26 = 212330030231167 is a prime.

It is a super-2 number, since 2×2123300302312312 (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 212330030231231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212330030231237) 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, 3443196071 + ... + 3443257736.

It is an arithmetic number, because the mean of its divisors is an integer number (28964424716448).

Almost surely, 2212330030231231 is an apocalyptic number.

212330030231231 is a deficient number, since it is larger than the sum of its proper divisors (19385367500353).

212330030231231 is a wasteful number, since it uses less digits than its factorization.

212330030231231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6886456621.

The product of its (nonzero) digits is 3888, while the sum is 26.

Adding to 212330030231231 its reverse (132132030033212), we get a palindrome (344462060264443).

The spelling of 212330030231231 in words is "two hundred twelve trillion, three hundred thirty billion, thirty million, two hundred thirty-one thousand, two hundred thirty-one".

Divisors: 1 11 2803 30833 6886453807 75750991877 19302730021021 212330030231231