121534323130000 has 400 divisors, whose sum is σ = 328742610590592. Its totient is φ = 43140160000000.

The previous prime is 121534323129983. The next prime is 121534323130007. The reversal of 121534323130000 is 31323435121.

It is a tau number, because it is divible by the number of its divisors (400).

It is not an unprimeable number, because it can be changed into a prime (121534323130007) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 788732964 + ... + 788887036.

Almost surely, 2^{121534323130000} is an apocalyptic number.

121534323130000 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 121534323130000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (164371305295296).

121534323130000 is an abundant number, since it is smaller than the sum of its proper divisors (207208287460592).

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

121534323130000 is a wasteful number, since it uses less digits than its factorization.

121534323130000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154284 (or 154263 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 28.

Adding to 121534323130000 its reverse (31323435121), we get a palindrome (121565646565121).

The spelling of 121534323130000 in words is "one hundred twenty-one trillion, five hundred thirty-four billion, three hundred twenty-three million, one hundred thirty thousand".