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213221203113 = 3642111068951
BaseRepresentation
bin1100011010010011111…
…0010101110010101001
3202101100202022101120210
43012210332111302221
511443134111444423
6241541422211333
721255551215452
oct3064476256251
9671322271523
10213221203113
11824768a0846
12353a7423b49
1317150490099
14a469d8c129
15582e01cb93
hex31a4f95ca9

213221203113 has 8 divisors (see below), whose sum is σ = 284339238976. Its totient is φ = 142125318000.

The previous prime is 213221203081. The next prime is 213221203171. The reversal of 213221203113 is 311302122312.

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

It is not a de Polignac number, because 213221203113 - 25 = 213221203081 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 213221203113.

It is not an unprimeable number, because it can be changed into a prime (213221203813) 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, 5515213 + ... + 5553738.

It is an arithmetic number, because the mean of its divisors is an integer number (35542404872).

Almost surely, 2213221203113 is an apocalyptic number.

It is an amenable number.

213221203113 is a deficient number, since it is larger than the sum of its proper divisors (71118035863).

213221203113 is a wasteful number, since it uses less digits than its factorization.

213221203113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11075375.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 213221203113 its reverse (311302122312), we get a palindrome (524523325425).

The spelling of 213221203113 in words is "two hundred thirteen billion, two hundred twenty-one million, two hundred three thousand, one hundred thirteen".

Divisors: 1 3 6421 19263 11068951 33206853 71073734371 213221203113