124645505113 has 4 divisors (see below), whose sum is σ = 125022077968. Its totient is φ = 124268932260.

The previous prime is 124645505093. The next prime is 124645505119. The reversal of 124645505113 is 311505546421.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 311505546421 = 19 ⋅16395028759.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-124645505113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (124645505119) 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, 188285931 + ... + 188286592.

It is an arithmetic number, because the mean of its divisors is an integer number (31255519492).

Almost surely, 2^124645505113 is an apocalyptic number.

It is an amenable number.

124645505113 is a deficient number, since it is larger than the sum of its proper divisors (376572855).

124645505113 is an equidigital number, since it uses as much as digits as its factorization.

124645505113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376572854.

The product of its (nonzero) digits is 72000, while the sum is 37.

The spelling of 124645505113 in words is "one hundred twenty-four billion, six hundred forty-five million, five hundred five thousand, one hundred thirteen".