121524531343 has 4 divisors (see below), whose sum is σ = 121525326880. Its totient is φ = 121523735808.

The previous prime is 121524531329. The next prime is 121524531347. The reversal of 121524531343 is 343135425121.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121524531343 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121524531299 and 121524531308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121524531347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88455 + ... + 500872.

It is an arithmetic number, because the mean of its divisors is an integer number (30381331720).

Almost surely, 2^121524531343 is an apocalyptic number.

121524531343 is a deficient number, since it is larger than the sum of its proper divisors (795537).

121524531343 is an equidigital number, since it uses as much as digits as its factorization.

121524531343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 795536.

The product of its digits is 43200, while the sum is 34.

Adding to 121524531343 its reverse (343135425121), we get a palindrome (464659956464).

The spelling of 121524531343 in words is "one hundred twenty-one billion, five hundred twenty-four million, five hundred thirty-one thousand, three hundred forty-three".