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12211434031 is a prime number
BaseRepresentation
bin10110101111101101…
…11011001000101111
31011112000222010022111
423113312323020233
5200002111342111
65335421224451
7611416322326
oct132766731057
934460863274
1012211434031
1151a7044145
122449702127
1311c7bc3314
1483bb390bd
154b70d7a21
hex2d7dbb22f

12211434031 has 2 divisors, whose sum is σ = 12211434032. Its totient is φ = 12211434030.

The previous prime is 12211434029. The next prime is 12211434043. The reversal of 12211434031 is 13043411221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12211434031 - 21 = 12211434029 is a prime.

It is a super-2 number, since 2×122114340312 (a number of 21 digits) contains 22 as substring.

Together with 12211434029, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 12211433993 and 12211434011.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12211404031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6105717015 + 6105717016.

It is an arithmetic number, because the mean of its divisors is an integer number (6105717016).

Almost surely, 212211434031 is an apocalyptic number.

12211434031 is a deficient number, since it is larger than the sum of its proper divisors (1).

12211434031 is an equidigital number, since it uses as much as digits as its factorization.

12211434031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 12211434031 its reverse (13043411221), we get a palindrome (25254845252).

The spelling of 12211434031 in words is "twelve billion, two hundred eleven million, four hundred thirty-four thousand, thirty-one".