124705232961 has 4 divisors (see below), whose sum is σ = 166273643952. Its totient is φ = 83136821972.

The previous prime is 124705232959. The next prime is 124705233007. The reversal of 124705232961 is 169232507421.

It is a happy number.

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: 169232507421 = 3 ⋅56410835807.

It is a cyclic number.

It is not a de Polignac number, because 124705232961 - 2¹ = 124705232959 is a prime.

It is not an unprimeable number, because it can be changed into a prime (124705232161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20784205491 + ... + 20784205496.

It is an arithmetic number, because the mean of its divisors is an integer number (41568410988).

Almost surely, 2^124705232961 is an apocalyptic number.

It is an amenable number.

124705232961 is a deficient number, since it is larger than the sum of its proper divisors (41568410991).

124705232961 is an equidigital number, since it uses as much as digits as its factorization.

124705232961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41568410990.

The product of its (nonzero) digits is 181440, while the sum is 42.

The spelling of 124705232961 in words is "one hundred twenty-four billion, seven hundred five million, two hundred thirty-two thousand, nine hundred sixty-one".