124240212345 has 16 divisors (see below), whose sum is σ = 210477536640. Its totient is φ = 62363714304.

The previous prime is 124240212329. The next prime is 124240212359. The reversal of 124240212345 is 543212042421.

It is a happy number.

It is not a de Polignac number, because 124240212345 - 2⁴ = 124240212329 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 243608005 + ... + 243608514.

It is an arithmetic number, because the mean of its divisors is an integer number (13154846040).

Almost surely, 2^124240212345 is an apocalyptic number.

124240212345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

124240212345 is a deficient number, since it is larger than the sum of its proper divisors (86237324295).

124240212345 is a wasteful number, since it uses less digits than its factorization.

124240212345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 487216544.

The product of its (nonzero) digits is 15360, while the sum is 30.

Adding to 124240212345 its reverse (543212042421), we get a palindrome (667452254766).

The spelling of 124240212345 in words is "one hundred twenty-four billion, two hundred forty million, two hundred twelve thousand, three hundred forty-five".