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10213123211 = 12794784919
BaseRepresentation
bin10011000001011111…
…11110010010001011
3222100202210102012122
421200233332102023
5131404024420321
64405234401455
7511043054264
oct114057762213
928322712178
1010213123211
1143710506a5
121b9043028b
13c69bbaa95
146cc59d96b
153eb95a8ab
hex260bfe48b

10213123211 has 8 divisors (see below), whose sum is σ = 10304532480. Its totient is φ = 10121885928.

The previous prime is 10213123183. The next prime is 10213123223. The reversal of 10213123211 is 11232131201.

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 10213123211 - 210 = 10213122187 is a prime.

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 10213123211.

It is not an unprimeable number, because it can be changed into a prime (10213123231) 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, 77810 + ... + 162728.

It is an arithmetic number, because the mean of its divisors is an integer number (1288066560).

Almost surely, 210213123211 is an apocalyptic number.

10213123211 is a deficient number, since it is larger than the sum of its proper divisors (91409269).

10213123211 is an equidigital number, since it uses as much as digits as its factorization.

10213123211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85993.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 10213123211 its reverse (11232131201), we get a palindrome (21445254412).

The spelling of 10213123211 in words is "ten billion, two hundred thirteen million, one hundred twenty-three thousand, two hundred eleven".

Divisors: 1 127 947 84919 120269 10784713 80418293 10213123211