124055413121999 has 4 divisors (see below), whose sum is σ = 124459502415864. Its totient is φ = 123651323828136.

The previous prime is 124055413121933. The next prime is 124055413122013. The reversal of 124055413121999 is 999121314550421.

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 124055413121999 - 2³² = 124051118154703 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124055413121909) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 202044646472 + ... + 202044647085.

It is an arithmetic number, because the mean of its divisors is an integer number (31114875603966).

Almost surely, 2^{124055413121999} is an apocalyptic number.

124055413121999 is a deficient number, since it is larger than the sum of its proper divisors (404089293865).

124055413121999 is an equidigital number, since it uses as much as digits as its factorization.

124055413121999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404089293864.

The product of its (nonzero) digits is 3499200, while the sum is 56.

The spelling of 124055413121999 in words is "one hundred twenty-four trillion, fifty-five billion, four hundred thirteen million, one hundred twenty-one thousand, nine hundred ninety-nine".