121013020000 has 120 divisors (see below), whose sum is σ = 302593726512. Its totient is φ = 47611200000.

The previous prime is 121013019991. The next prime is 121013020021. The reversal of 121013020000 is 20310121.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1170405 + ... + 1269595.

Almost surely, 2^121013020000 is an apocalyptic number.

121013020000 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 121013020000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (151296863256).

121013020000 is an abundant number, since it is smaller than the sum of its proper divisors (181580706512).

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

121013020000 is an frugal number, since it uses more digits than its factorization.

121013020000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99282 (or 99259 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 10.

Adding to 121013020000 its reverse (20310121), we get a palindrome (121033330121).

The spelling of 121013020000 in words is "one hundred twenty-one billion, thirteen million, twenty thousand".