123424004220 has 48 divisors (see below), whose sum is σ = 377004233088. Its totient is φ = 29920970560.

The previous prime is 123424004213. The next prime is 123424004227. The reversal of 123424004220 is 22400424321.

It is an interprime number because it is at equal distance from previous prime (123424004213) and next prime (123424004227).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123424004227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 93502374 + ... + 93503693.

It is an arithmetic number, because the mean of its divisors is an integer number (7854254856).

Almost surely, 2^123424004220 is an apocalyptic number.

123424004220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123424004220 is an abundant number, since it is smaller than the sum of its proper divisors (253580228868).

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

123424004220 is a wasteful number, since it uses less digits than its factorization.

123424004220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187006090 (or 187006088 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 123424004220 its reverse (22400424321), we get a palindrome (145824428541).

The spelling of 123424004220 in words is "one hundred twenty-three billion, four hundred twenty-four million, four thousand, two hundred twenty".