121303496160 has 384 divisors, whose sum is σ = 529325798400. Its totient is φ = 25205852160.

The previous prime is 121303496143. The next prime is 121303496161. The reversal of 121303496160 is 61694303121.

121303496160 is a `hidden beast` number, since 1 + 2 + 1 + 3 + 0 + 3 + 496 + 160 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121303496161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 150306 + ... + 514974.

It is an arithmetic number, because the mean of its divisors is an integer number (1378452600).

Almost surely, 2^121303496160 is an apocalyptic number.

121303496160 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 121303496160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (264662899200).

121303496160 is an abundant number, since it is smaller than the sum of its proper divisors (408022302240).

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

121303496160 is a wasteful number, since it uses less digits than its factorization.

121303496160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364711 (or 364697 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

Adding to 121303496160 its reverse (61694303121), we get a palindrome (182997799281).

The spelling of 121303496160 in words is "one hundred twenty-one billion, three hundred three million, four hundred ninety-six thousand, one hundred sixty".