121433123311 has 4 divisors (see below), whose sum is σ = 121544428824. Its totient is φ = 121321817800.

The previous prime is 121433123303. The next prime is 121433123327. The reversal of 121433123311 is 113321334121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 121433123311 - 2³ = 121433123303 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121433123341) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 55651120 + ... + 55653301.

It is an arithmetic number, because the mean of its divisors is an integer number (30386107206).

Almost surely, 2^121433123311 is an apocalyptic number.

121433123311 is a deficient number, since it is larger than the sum of its proper divisors (111305513).

121433123311 is a wasteful number, since it uses less digits than its factorization.

121433123311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111305512.

The product of its digits is 1296, while the sum is 25.

Adding to 121433123311 its reverse (113321334121), we get a palindrome (234754457432).

The spelling of 121433123311 in words is "one hundred twenty-one billion, four hundred thirty-three million, one hundred twenty-three thousand, three hundred eleven".