121052542533 has 16 divisors (see below), whose sum is σ = 173861081856. Its totient is φ = 74475852480.

The previous prime is 121052542489. The next prime is 121052542669. The reversal of 121052542533 is 335245250121.

It is not a de Polignac number, because 121052542533 - 2¹⁰ = 121052541509 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 121052542494 and 121052542503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121052542333) 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 15 ways as a sum of consecutive naturals, for example, 211213 + ... + 535458.

It is an arithmetic number, because the mean of its divisors is an integer number (10866317616).

Almost surely, 2^121052542533 is an apocalyptic number.

121052542533 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

121052542533 is a deficient number, since it is larger than the sum of its proper divisors (52808539323).

121052542533 is a wasteful number, since it uses less digits than its factorization.

121052542533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 750844.

The product of its (nonzero) digits is 36000, while the sum is 33.

Adding to 121052542533 its reverse (335245250121), we get a palindrome (456297792654).

The spelling of 121052542533 in words is "one hundred twenty-one billion, fifty-two million, five hundred forty-two thousand, five hundred thirty-three".