124342123240 has 32 divisors (see below), whose sum is σ = 282485998080. Its totient is φ = 49253965632.

The previous prime is 124342123177. The next prime is 124342123247. The reversal of 124342123240 is 42321243421.

It is a super-2 number, since 2×124342123240² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 124342123199 and 124342123208.

It is not an unprimeable number, because it can be changed into a prime (124342123247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15085944 + ... + 15094183.

It is an arithmetic number, because the mean of its divisors is an integer number (8827687440).

Almost surely, 2^124342123240 is an apocalyptic number.

124342123240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

124342123240 is an abundant number, since it is smaller than the sum of its proper divisors (158143874840).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

124342123240 is a wasteful number, since it uses less digits than its factorization.

124342123240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30180241 (or 30180237 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 124342123240 its reverse (42321243421), we get a palindrome (166663366661).

The spelling of 124342123240 in words is "one hundred twenty-four billion, three hundred forty-two million, one hundred twenty-three thousand, two hundred forty".