121343231230 has 128 divisors (see below), whose sum is σ = 249550253568. Its totient is φ = 42173332992.

The previous prime is 121343231221. The next prime is 121343231281. The reversal of 121343231230 is 32132343121.

It is a junction number, because it is equal to n+sod(n) for n = 121343231195 and 121343231204.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 22128069 + ... + 22133551.

It is an arithmetic number, because the mean of its divisors is an integer number (1949611356).

Almost surely, 2^121343231230 is an apocalyptic number.

121343231230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121343231230 is an abundant number, since it is smaller than the sum of its proper divisors (128207022338).

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

121343231230 is a wasteful number, since it uses less digits than its factorization.

121343231230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5690.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 121343231230 its reverse (32132343121), we get a palindrome (153475574351).

The spelling of 121343231230 in words is "one hundred twenty-one billion, three hundred forty-three million, two hundred thirty-one thousand, two hundred thirty".