123421030430 has 16 divisors (see below), whose sum is σ = 222858673920. Its totient is φ = 49212674592.

The previous prime is 123421030409. The next prime is 123421030459. The reversal of 123421030430 is 34030124321.

It is a junction number, because it is equal to n+sod(n) for n = 123421030396 and 123421030405.

It is a congruent number.

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, 19463870 + ... + 19470209.

It is an arithmetic number, because the mean of its divisors is an integer number (13928667120).

Almost surely, 2^123421030430 is an apocalyptic number.

123421030430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123421030430 is a deficient number, since it is larger than the sum of its proper divisors (99437643490).

123421030430 is a wasteful number, since it uses less digits than its factorization.

123421030430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38934403.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 123421030430 its reverse (34030124321), we get a palindrome (157451154751).

The spelling of 123421030430 in words is "one hundred twenty-three billion, four hundred twenty-one million, thirty thousand, four hundred thirty".