121433312011 has 24 divisors (see below), whose sum is σ = 135804438000. Its totient is φ = 108470208000.

The previous prime is 121433311981. The next prime is 121433312071. The reversal of 121433312011 is 110213334121.

It is not a de Polignac number, because 121433312011 - 2²⁵ = 121399757579 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121433312071) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28903711 + ... + 28907911.

It is an arithmetic number, because the mean of its divisors is an integer number (5658518250).

Almost surely, 2^121433312011 is an apocalyptic number.

121433312011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

121433312011 is a deficient number, since it is larger than the sum of its proper divisors (14371125989).

121433312011 is a wasteful number, since it uses less digits than its factorization.

121433312011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8331 (or 8320 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 121433312011 its reverse (110213334121), we get a palindrome (231646646132).

The spelling of 121433312011 in words is "one hundred twenty-one billion, four hundred thirty-three million, three hundred twelve thousand, eleven".