121313233030020 has 192 divisors, whose sum is σ = 365336649216000. Its totient is φ = 29981159838720.

The previous prime is 121313233029953. The next prime is 121313233030027. The reversal of 121313233030020 is 20030332313121.

It is not an unprimeable number, because it can be changed into a prime (121313233030027) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 111925080 + ... + 113003760.

It is an arithmetic number, because the mean of its divisors is an integer number (1902795048000).

Almost surely, 2^{121313233030020} is an apocalyptic number.

121313233030020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121313233030020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (182668324608000).

121313233030020 is an abundant number, since it is smaller than the sum of its proper divisors (244023416185980).

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

121313233030020 is a wasteful number, since it uses less digits than its factorization.

121313233030020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1080858 (or 1080856 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 121313233030020 its reverse (20030332313121), we get a palindrome (141343565343141).

The spelling of 121313233030020 in words is "one hundred twenty-one trillion, three hundred thirteen billion, two hundred thirty-three million, thirty thousand, twenty".