123321121430 has 32 divisors (see below), whose sum is σ = 244883828448. Its totient is φ = 44423366400.

The previous prime is 123321121381. The next prime is 123321121439. The reversal of 123321121430 is 34121123321.

It is a junction number, because it is equal to n+sod(n) for n = 123321121396 and 123321121405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123321121439) 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, 11563256 + ... + 11573915.

It is an arithmetic number, because the mean of its divisors is an integer number (7652619639).

Almost surely, 2^123321121430 is an apocalyptic number.

123321121430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123321121430 is a deficient number, since it is larger than the sum of its proper divisors (121562707018).

123321121430 is a wasteful number, since it uses less digits than its factorization.

123321121430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23137232.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 123321121430 its reverse (34121123321), we get a palindrome (157442244751).

The spelling of 123321121430 in words is "one hundred twenty-three billion, three hundred twenty-one million, one hundred twenty-one thousand, four hundred thirty".