121341530250 has 128 divisors (see below), whose sum is σ = 336857564160. Its totient is φ = 32325336000.

The previous prime is 121341530249. The next prime is 121341530257. The reversal of 121341530250 is 52035143121.

121341530250 is a `hidden beast` number, since 1 + 21 + 341 + 53 + 0 + 250 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (121341530257) 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, 7153279 + ... + 7170221.

It is an arithmetic number, because the mean of its divisors is an integer number (2631699720).

Almost surely, 2^121341530250 is an apocalyptic number.

121341530250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 121341530250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (168428782080).

121341530250 is an abundant number, since it is smaller than the sum of its proper divisors (215516033910).

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

121341530250 is a wasteful number, since it uses less digits than its factorization.

121341530250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18030 (or 18014 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

Adding to 121341530250 its reverse (52035143121), we get a palindrome (173376673371).

The spelling of 121341530250 in words is "one hundred twenty-one billion, three hundred forty-one million, five hundred thirty thousand, two hundred fifty".