121547300952 has 128 divisors (see below), whose sum is σ = 381741465600. Its totient is φ = 31329667200.

The previous prime is 121547300947. The next prime is 121547300983. The reversal of 121547300952 is 259003745121.

It is a self number, because there is not a number n which added to its sum of digits gives 121547300952.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8952 + ... + 493127.

It is an arithmetic number, because the mean of its divisors is an integer number (2982355200).

Almost surely, 2^121547300952 is an apocalyptic number.

121547300952 is a gapful number since it is divisible by the number (12) 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 121547300952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (190870732800).

121547300952 is an abundant number, since it is smaller than the sum of its proper divisors (260194164648).

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

121547300952 is a wasteful number, since it uses less digits than its factorization.

121547300952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 502237 (or 502233 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 39.

The spelling of 121547300952 in words is "one hundred twenty-one billion, five hundred forty-seven million, three hundred thousand, nine hundred fifty-two".