121405034433 has 16 divisors (see below), whose sum is σ = 165331077120. Its totient is φ = 79208123856.

The previous prime is 121405034383. The next prime is 121405034437. The reversal of 121405034433 is 334430504121.

It is not a de Polignac number, because 121405034433 - 2¹² = 121405030337 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 121405034433.

It is not an unprimeable number, because it can be changed into a prime (121405034437) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2174716 + ... + 2229842.

It is an arithmetic number, because the mean of its divisors is an integer number (10333192320).

Almost surely, 2^121405034433 is an apocalyptic number.

It is an amenable number.

121405034433 is a deficient number, since it is larger than the sum of its proper divisors (43926042687).

121405034433 is a wasteful number, since it uses less digits than its factorization.

121405034433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70796.

The product of its (nonzero) digits is 17280, while the sum is 30.

Adding to 121405034433 its reverse (334430504121), we get a palindrome (455835538554).

The spelling of 121405034433 in words is "one hundred twenty-one billion, four hundred five million, thirty-four thousand, four hundred thirty-three".