126106131211 has 4 divisors (see below), whose sum is σ = 126107493424. Its totient is φ = 126104769000.

The previous prime is 126106131209. The next prime is 126106131269. The reversal of 126106131211 is 112131601621.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 126106131211 - 2¹ = 126106131209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126106131911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 531255 + ... + 731056.

It is an arithmetic number, because the mean of its divisors is an integer number (31526873356).

Almost surely, 2^126106131211 is an apocalyptic number.

126106131211 is a deficient number, since it is larger than the sum of its proper divisors (1362213).

126106131211 is an equidigital number, since it uses as much as digits as its factorization.

126106131211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1362212.

The product of its (nonzero) digits is 432, while the sum is 25.

Adding to 126106131211 its reverse (112131601621), we get a palindrome (238237732832).

The spelling of 126106131211 in words is "one hundred twenty-six billion, one hundred six million, one hundred thirty-one thousand, two hundred eleven".