124213312409 has 2 divisors, whose sum is σ = 124213312410. Its totient is φ = 124213312408.

The previous prime is 124213312309. The next prime is 124213312427. The reversal of 124213312409 is 904213312421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 120117696400 + 4095616009 = 346580^2 + 63997^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-124213312409 is a prime.

It is not a weakly prime, because it can be changed into another prime (124213312309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62106656204 + 62106656205.

It is an arithmetic number, because the mean of its divisors is an integer number (62106656205).

Almost surely, 2^124213312409 is an apocalyptic number.

It is an amenable number.

124213312409 is a deficient number, since it is larger than the sum of its proper divisors (1).

124213312409 is an equidigital number, since it uses as much as digits as its factorization.

124213312409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 32.

The spelling of 124213312409 in words is "one hundred twenty-four billion, two hundred thirteen million, three hundred twelve thousand, four hundred nine".