124785846121 has 2 divisors, whose sum is σ = 124785846122. Its totient is φ = 124785846120.

The previous prime is 124785846083. The next prime is 124785846161. The reversal of 124785846121 is 121648587421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 123858948096 + 926898025 = 351936^2 + 30445^2 .

It is a cyclic number.

It is not a de Polignac number, because 124785846121 - 2¹⁷ = 124785715049 is a prime.

It is not a weakly prime, because it can be changed into another prime (124785846161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62392923060 + 62392923061.

It is an arithmetic number, because the mean of its divisors is an integer number (62392923061).

Almost surely, 2^124785846121 is an apocalyptic number.

It is an amenable number.

124785846121 is a deficient number, since it is larger than the sum of its proper divisors (1).

124785846121 is an equidigital number, since it uses as much as digits as its factorization.

124785846121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 860160, while the sum is 49.

The spelling of 124785846121 in words is "one hundred twenty-four billion, seven hundred eighty-five million, eight hundred forty-six thousand, one hundred twenty-one".