2331132212111 has 4 divisors (see below), whose sum is σ = 2331136915800. Its totient is φ = 2331127508424.

The previous prime is 2331132212099. The next prime is 2331132212179. The reversal of 2331132212111 is 1112122311332.

It is a happy number.

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 2331132212111 - 2²² = 2331128017807 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 (2331132212411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1507376 + ... + 2633333.

It is an arithmetic number, because the mean of its divisors is an integer number (582784228950).

Almost surely, 2^{2331132212111} is an apocalyptic number.

2331132212111 is a deficient number, since it is larger than the sum of its proper divisors (4703689).

2331132212111 is an equidigital number, since it uses as much as digits as its factorization.

2331132212111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4703688.

The product of its digits is 432, while the sum is 23.

Adding to 2331132212111 its reverse (1112122311332), we get a palindrome (3443254523443).

The spelling of 2331132212111 in words is "two trillion, three hundred thirty-one billion, one hundred thirty-two million, two hundred twelve thousand, one hundred eleven".