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12223210031 is a prime number
BaseRepresentation
bin10110110001000111…
…10110001000101111
31011112212010101221122
423120203312020233
5200013120210111
65340521451155
7611621366564
oct133043661057
934485111848
1012223210031
11520275767a
122451640abb
1311ca487376
1483d52286b
154b8161cdb
hex2d88f622f

12223210031 has 2 divisors, whose sum is σ = 12223210032. Its totient is φ = 12223210030.

The previous prime is 12223210019. The next prime is 12223210039. The reversal of 12223210031 is 13001232221.

It is a strong prime.

It is an emirp because it is prime and its reverse (13001232221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12223210031 - 210 = 12223209007 is a prime.

It is a super-2 number, since 2×122232100312 (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12223209991 and 12223210009.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12223210039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6111605015 + 6111605016.

It is an arithmetic number, because the mean of its divisors is an integer number (6111605016).

Almost surely, 212223210031 is an apocalyptic number.

12223210031 is a deficient number, since it is larger than the sum of its proper divisors (1).

12223210031 is an equidigital number, since it uses as much as digits as its factorization.

12223210031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 12223210031 its reverse (13001232221), we get a palindrome (25224442252).

The spelling of 12223210031 in words is "twelve billion, two hundred twenty-three million, two hundred ten thousand, thirty-one".