124420111134131 has 4 divisors (see below), whose sum is σ = 124627132950264. Its totient is φ = 124213089318000.

The previous prime is 124420111134127. The next prime is 124420111134133. The reversal of 124420111134131 is 131431111024421.

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 124420111134131 - 2² = 124420111134127 is a prime.

It is a super-2 number, since 2×124420111134131² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 124420111134094 and 124420111134103.

It is not an unprimeable number, because it can be changed into a prime (124420111134133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103510907165 + ... + 103510908366.

It is an arithmetic number, because the mean of its divisors is an integer number (31156783237566).

Almost surely, 2^{124420111134131} is an apocalyptic number.

124420111134131 is a deficient number, since it is larger than the sum of its proper divisors (207021816133).

124420111134131 is an equidigital number, since it uses as much as digits as its factorization.

124420111134131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207021816132.

The product of its (nonzero) digits is 2304, while the sum is 29.

Adding to 124420111134131 its reverse (131431111024421), we get a palindrome (255851222158552).

The spelling of 124420111134131 in words is "one hundred twenty-four trillion, four hundred twenty billion, one hundred eleven million, one hundred thirty-four thousand, one hundred thirty-one".