124023242320420 has 24 divisors (see below), whose sum is σ = 260449702511544. Its totient is φ = 49609126711296.

The previous prime is 124023242320391. The next prime is 124023242320433. The reversal of 124023242320420 is 24023242320421.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 139931357476 + 123883310962944 = 374074^2 + 11130288^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4579719 + ... + 16401838.

It is an arithmetic number, because the mean of its divisors is an integer number (10852070937981).

Almost surely, 2^{124023242320420} is an apocalyptic number.

124023242320420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

124023242320420 is an abundant number, since it is smaller than the sum of its proper divisors (136426460191124).

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

124023242320420 is a wasteful number, since it uses less digits than its factorization.

124023242320420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21277119 (or 21277117 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 31.

Adding to 124023242320420 its reverse (24023242320421), we get a palindrome (148046484640841).

Subtracting from 124023242320420 its reverse (24023242320421), we obtain a palindrome (99999999999999).

The spelling of 124023242320420 in words is "one hundred twenty-four trillion, twenty-three billion, two hundred forty-two million, three hundred twenty thousand, four hundred twenty".