123441402011 has 2 divisors, whose sum is σ = 123441402012. Its totient is φ = 123441402010.

The previous prime is 123441401969. The next prime is 123441402013. The reversal of 123441402011 is 110204144321.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123441402011 is a prime.

Together with 123441402013, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (123441402013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61720701005 + 61720701006.

It is an arithmetic number, because the mean of its divisors is an integer number (61720701006).

Almost surely, 2^123441402011 is an apocalyptic number.

123441402011 is a deficient number, since it is larger than the sum of its proper divisors (1).

123441402011 is an equidigital number, since it uses as much as digits as its factorization.

123441402011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 123441402011 its reverse (110204144321), we get a palindrome (233645546332).

The spelling of 123441402011 in words is "one hundred twenty-three billion, four hundred forty-one million, four hundred two thousand, eleven".