12138110029 has 2 divisors, whose sum is σ = 12138110030. Its totient is φ = 12138110028.

The previous prime is 12138110027. The next prime is 12138110057. The reversal of 12138110029 is 92001183121.

It is an a-pointer prime, because the next prime (12138110057) can be obtained adding 12138110029 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9235594404 + 2902515625 = 96102^2 + 53875^2 .

It is an emirp because it is prime and its reverse (92001183121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12138110029 - 2¹ = 12138110027 is a prime.

It is a super-2 number, since 2×12138110029² (a number of 21 digits) contains 22 as substring.

Together with 12138110027, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 12138109979 and 12138110006.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12138110027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6069055014 + 6069055015.

It is an arithmetic number, because the mean of its divisors is an integer number (6069055015).

Almost surely, 2^12138110029 is an apocalyptic number.

It is an amenable number.

12138110029 is a deficient number, since it is larger than the sum of its proper divisors (1).

12138110029 is an equidigital number, since it uses as much as digits as its factorization.

12138110029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 28.

The spelling of 12138110029 in words is "twelve billion, one hundred thirty-eight million, one hundred ten thousand, twenty-nine".