124431319993 has 4 divisors (see below), whose sum is σ = 129841377408. Its totient is φ = 119021262580.

The previous prime is 124431319951. The next prime is 124431319997. The reversal of 124431319993 is 399913134421.

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.

It is a cyclic number.

It is not a de Polignac number, because 124431319993 - 2¹³ = 124431311801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (124431319997) 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, 2705028673 + ... + 2705028718.

It is an arithmetic number, because the mean of its divisors is an integer number (32460344352).

Almost surely, 2^124431319993 is an apocalyptic number.

It is an amenable number.

124431319993 is a deficient number, since it is larger than the sum of its proper divisors (5410057415).

124431319993 is an equidigital number, since it uses as much as digits as its factorization.

124431319993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5410057414.

The product of its digits is 629856, while the sum is 49.

The spelling of 124431319993 in words is "one hundred twenty-four billion, four hundred thirty-one million, three hundred nineteen thousand, nine hundred ninety-three".