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211230212113 = 412719174767
BaseRepresentation
bin1100010010111001001…
…1010100000000010001
3202012012222220120101101
43010232103110000101
511430044413241423
6241012100304401
721155324115124
oct3045623240021
9665188816341
10211230212113
1181644a47838
1234b306a2101
1316bc3b4b4bb
14a31b79a3bb
1557643397ad
hex312e4d4011

211230212113 has 12 divisors (see below), whose sum is σ = 216810190080. Its totient is φ = 205790460320.

The previous prime is 211230212099. The next prime is 211230212213. The reversal of 211230212113 is 311212032112.

It is not a de Polignac number, because 211230212113 - 225 = 211196657681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211230212213) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1121256 + ... + 1296022.

It is an arithmetic number, because the mean of its divisors is an integer number (18067515840).

Almost surely, 2211230212113 is an apocalyptic number.

It is an amenable number.

211230212113 is a deficient number, since it is larger than the sum of its proper divisors (5579977967).

211230212113 is an equidigital number, since it uses as much as digits as its factorization.

211230212113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175568 (or 175527 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 211230212113 its reverse (311212032112), we get a palindrome (522442244225).

The spelling of 211230212113 in words is "two hundred eleven billion, two hundred thirty million, two hundred twelve thousand, one hundred thirteen".

Divisors: 1 41 719 1681 29479 174767 1208639 7165447 125657473 293783327 5151956393 211230212113