133212312111 has 16 divisors (see below), whose sum is σ = 189282253824. Its totient is φ = 83139597024.

The previous prime is 133212312059. The next prime is 133212312127. The reversal of 133212312111 is 111213212331.

It is not a de Polignac number, because 133212312111 - 2¹⁰ = 133212311087 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133212312131) 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, 20535196 + ... + 20541681.

It is an arithmetic number, because the mean of its divisors is an integer number (11830140864).

Almost surely, 2^133212312111 is an apocalyptic number.

133212312111 is a deficient number, since it is larger than the sum of its proper divisors (56069941713).

133212312111 is a wasteful number, since it uses less digits than its factorization.

133212312111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41076950.

The product of its digits is 216, while the sum is 21.

Adding to 133212312111 its reverse (111213212331), we get a palindrome (244425524442).

The spelling of 133212312111 in words is "one hundred thirty-three billion, two hundred twelve million, three hundred twelve thousand, one hundred eleven".