121501340000 has 120 divisors (see below), whose sum is σ = 306992081088. Its totient is φ = 47286720000.

The previous prime is 121501339969. The next prime is 121501340003. The reversal of 121501340000 is 43105121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121501340003) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 657905 + ... + 822095.

Almost surely, 2^121501340000 is an apocalyptic number.

121501340000 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 121501340000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (153496040544).

121501340000 is an abundant number, since it is smaller than the sum of its proper divisors (185490741088).

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

121501340000 is an equidigital number, since it uses as much as digits as its factorization.

121501340000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164258 (or 164235 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 17.

Adding to 121501340000 its reverse (43105121), we get a palindrome (121544445121).

The spelling of 121501340000 in words is "one hundred twenty-one billion, five hundred one million, three hundred forty thousand".