123210420000 has 120 divisors (see below), whose sum is σ = 404155016496. Its totient is φ = 32856096000.

The previous prime is 123210419923. The next prime is 123210420007. The reversal of 123210420000 is 24012321.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (123210420007) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 966754 + ... + 1086753.

Almost surely, 2^123210420000 is an apocalyptic number.

123210420000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123210420000 is an abundant number, since it is smaller than the sum of its proper divisors (280944596496).

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

123210420000 is an equidigital number, since it uses as much as digits as its factorization.

123210420000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2053540 (or 2053517 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 123210420000 its reverse (24012321), we get a palindrome (123234432321).

The spelling of 123210420000 in words is "one hundred twenty-three billion, two hundred ten million, four hundred twenty thousand".