12121320303230 has 16 divisors (see below), whose sum is σ = 21820931843760. Its totient is φ = 4847960277312.

The previous prime is 12121320303223. The next prime is 12121320303233. The reversal of 12121320303230 is 3230302312121.

It is a junction number, because it is equal to n+sod(n) for n = 12121320303196 and 12121320303205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12121320303233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70890839 + ... + 71061618.

It is an arithmetic number, because the mean of its divisors is an integer number (1363808240235).

Almost surely, 2^{12121320303230} is an apocalyptic number.

12121320303230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12121320303230 is a deficient number, since it is larger than the sum of its proper divisors (9699611540530).

12121320303230 is a wasteful number, since it uses less digits than its factorization.

12121320303230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141961003.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 12121320303230 its reverse (3230302312121), we get a palindrome (15351622615351).

The spelling of 12121320303230 in words is "twelve trillion, one hundred twenty-one billion, three hundred twenty million, three hundred three thousand, two hundred thirty".