124120131011 has 4 divisors (see below), whose sum is σ = 124124647152. Its totient is φ = 124115614872.

The previous prime is 124120130971. The next prime is 124120131019. The reversal of 124120131011 is 110131021421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 110131021421 = 20899 ⋅5269679.

It is a cyclic number.

It is not a de Polignac number, because 124120131011 - 2¹⁴ = 124120114627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (124120131019) 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, 2216591 + ... + 2271896.

It is an arithmetic number, because the mean of its divisors is an integer number (31031161788).

Almost surely, 2^124120131011 is an apocalyptic number.

124120131011 is a deficient number, since it is larger than the sum of its proper divisors (4516141).

124120131011 is an equidigital number, since it uses as much as digits as its factorization.

124120131011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4516140.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 124120131011 its reverse (110131021421), we get a palindrome (234251152432).

The spelling of 124120131011 in words is "one hundred twenty-four billion, one hundred twenty million, one hundred thirty-one thousand, eleven".