121534344021303 has 32 divisors (see below), whose sum is σ = 182848727440320. Its totient is φ = 80767302821568.

The previous prime is 121534344021301. The next prime is 121534344021373. The reversal of 121534344021303 is 303120443435121.

121534344021303 is a `hidden beast` number, since 1 + 2 + 1 + 5 + 3 + 4 + 344 + 0 + 2 + 1 + 303 = 666.

It is not a de Polignac number, because 121534344021303 - 2¹ = 121534344021301 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121534344021301) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 86958550 + ... + 88345107.

It is an arithmetic number, because the mean of its divisors is an integer number (5714022732510).

Almost surely, 2^{121534344021303} is an apocalyptic number.

121534344021303 is a deficient number, since it is larger than the sum of its proper divisors (61314383419017).

121534344021303 is an frugal number, since it uses more digits than its factorization.

121534344021303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175303995 (or 175303977 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 36.

Adding to 121534344021303 its reverse (303120443435121), we get a palindrome (424654787456424).

The spelling of 121534344021303 in words is "one hundred twenty-one trillion, five hundred thirty-four billion, three hundred forty-four million, twenty-one thousand, three hundred three".