121533152635 has 16 divisors (see below), whose sum is σ = 149410179072. Its totient is φ = 94846681600.

The previous prime is 121533152581. The next prime is 121533152659. The reversal of 121533152635 is 536251335121.

It is not a de Polignac number, because 121533152635 - 2¹¹ = 121533150587 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121533152594 and 121533152603.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3287655 + ... + 3324415.

It is an arithmetic number, because the mean of its divisors is an integer number (9338136192).

Almost surely, 2^121533152635 is an apocalyptic number.

121533152635 is a deficient number, since it is larger than the sum of its proper divisors (27877026437).

121533152635 is a wasteful number, since it uses less digits than its factorization.

121533152635 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52934.

The product of its digits is 81000, while the sum is 37.

Adding to 121533152635 its reverse (536251335121), we get a palindrome (657784487756).

The spelling of 121533152635 in words is "one hundred twenty-one billion, five hundred thirty-three million, one hundred fifty-two thousand, six hundred thirty-five".