123212420230 has 16 divisors (see below), whose sum is σ = 221789027664. Its totient is φ = 49283485600.

The previous prime is 123212420209. The next prime is 123212420239. The reversal of 123212420230 is 32024212321.

It is a super-2 number, since 2×123212420230² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123212420239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 202380 + ... + 536080.

It is an arithmetic number, because the mean of its divisors is an integer number (13861814229).

Almost surely, 2^123212420230 is an apocalyptic number.

123212420230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123212420230 is a deficient number, since it is larger than the sum of its proper divisors (98576607434).

123212420230 is a wasteful number, since it uses less digits than its factorization.

123212420230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370631.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 123212420230 its reverse (32024212321), we get a palindrome (155236632551).

The spelling of 123212420230 in words is "one hundred twenty-three billion, two hundred twelve million, four hundred twenty thousand, two hundred thirty".