123421502230 has 128 divisors (see below), whose sum is σ = 251949398400. Its totient is φ = 43213492224.

The previous prime is 123421502227. The next prime is 123421502287. The reversal of 123421502230 is 32205124321.

It is a junction number, because it is equal to n+sod(n) for n = 123421502195 and 123421502204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 76232361 + ... + 76233979.

It is an arithmetic number, because the mean of its divisors is an integer number (1968354675).

Almost surely, 2^123421502230 is an apocalyptic number.

123421502230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123421502230 is an abundant number, since it is smaller than the sum of its proper divisors (128527896170).

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

123421502230 is a wasteful number, since it uses less digits than its factorization.

123421502230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2018.

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 123421502230 its reverse (32205124321), we get a palindrome (155626626551).

The spelling of 123421502230 in words is "one hundred twenty-three billion, four hundred twenty-one million, five hundred two thousand, two hundred thirty".