121234420230 has 64 divisors (see below), whose sum is σ = 362758583808. Its totient is φ = 25191567360.

The previous prime is 121234420217. The next prime is 121234420231. The reversal of 121234420230 is 32024432121.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 121234420230.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121234420231) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26238907 + ... + 26243526.

It is an arithmetic number, because the mean of its divisors is an integer number (5668102872).

Almost surely, 2^121234420230 is an apocalyptic number.

121234420230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121234420230 is an abundant number, since it is smaller than the sum of its proper divisors (241524163578).

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

121234420230 is a wasteful number, since it uses less digits than its factorization.

121234420230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52482461.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 121234420230 its reverse (32024432121), we get a palindrome (153258852351).

The spelling of 121234420230 in words is "one hundred twenty-one billion, two hundred thirty-four million, four hundred twenty thousand, two hundred thirty".