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13231123222 = 217389150683
BaseRepresentation
bin11000101001010001…
…01110101100010110
31021011002200200220211
430110220232230112
5204044131420342
610024524520034
7645610456162
oct142450565426
937132620824
1013231123222
11567a695789
1226930b001a
13132b2352c5
148d732dca2
155268a7c17
hex314a2eb16

13231123222 has 8 divisors (see below), whose sum is σ = 21014136936. Its totient is φ = 6226410912.

The previous prime is 13231123201. The next prime is 13231123231. The reversal of 13231123222 is 22232113231.

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

It is a super-2 number, since 2×132311232222 (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13231123193 and 13231123202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 194575308 + ... + 194575375.

It is an arithmetic number, because the mean of its divisors is an integer number (2626767117).

Almost surely, 213231123222 is an apocalyptic number.

13231123222 is a deficient number, since it is larger than the sum of its proper divisors (7783013714).

13231123222 is a wasteful number, since it uses less digits than its factorization.

13231123222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389150702.

The product of its digits is 864, while the sum is 22.

Adding to 13231123222 its reverse (22232113231), we get a palindrome (35463236453).

Subtracting 13231123222 from its reverse (22232113231), we obtain a palindrome (9000990009).

The spelling of 13231123222 in words is "thirteen billion, two hundred thirty-one million, one hundred twenty-three thousand, two hundred twenty-two".

Divisors: 1 2 17 34 389150683 778301366 6615561611 13231123222