124320440120 has 16 divisors (see below), whose sum is σ = 279720990360. Its totient is φ = 49728176032.

The previous prime is 124320440107. The next prime is 124320440129. The reversal of 124320440120 is 21044023421.

It is a super-2 number, since 2×124320440120² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124320440129) 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, 1554005462 + ... + 1554005541.

Almost surely, 2^124320440120 is an apocalyptic number.

124320440120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

124320440120 is an abundant number, since it is smaller than the sum of its proper divisors (155400550240).

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

124320440120 is a wasteful number, since it uses less digits than its factorization.

124320440120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3108011014 (or 3108011010 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 124320440120 its reverse (21044023421), we get a palindrome (145364463541).

The spelling of 124320440120 in words is "one hundred twenty-four billion, three hundred twenty million, four hundred forty thousand, one hundred twenty".