121231320230 has 16 divisors (see below), whose sum is σ = 221473338480. Its totient is φ = 47768758752.

The previous prime is 121231320191. The next prime is 121231320277. The reversal of 121231320230 is 32023132121.

121231320230 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 7 ways as a sum of consecutive naturals, for example, 90470465 + ... + 90471804.

It is an arithmetic number, because the mean of its divisors is an integer number (13842083655).

Almost surely, 2^121231320230 is an apocalyptic number.

121231320230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121231320230 is a deficient number, since it is larger than the sum of its proper divisors (100242018250).

121231320230 is a wasteful number, since it uses less digits than its factorization.

121231320230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180942343.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 121231320230 its reverse (32023132121), we get a palindrome (153254452351).

The spelling of 121231320230 in words is "one hundred twenty-one billion, two hundred thirty-one million, three hundred twenty thousand, two hundred thirty".