2113431234111 has 96 divisors (see below), whose sum is σ = 3291147804672. Its totient is φ = 1354279357440.

The previous prime is 2113431234107. The next prime is 2113431234133. The reversal of 2113431234111 is 1114321343112.

2113431234111 is a `hidden beast` number, since 2 + 1 + 1 + 3 + 4 + 312 + 341 + 1 + 1 = 666.

It is not a de Polignac number, because 2113431234111 - 2² = 2113431234107 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2113431234011) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 316710471 + ... + 316717143.

It is an arithmetic number, because the mean of its divisors is an integer number (34282789632).

Almost surely, 2^{2113431234111} is an apocalyptic number.

2113431234111 is a deficient number, since it is larger than the sum of its proper divisors (1177716570561).

2113431234111 is an equidigital number, since it uses as much as digits as its factorization.

2113431234111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7195 (or 7183 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

Adding to 2113431234111 its reverse (1114321343112), we get a palindrome (3227752577223).

The spelling of 2113431234111 in words is "two trillion, one hundred thirteen billion, four hundred thirty-one million, two hundred thirty-four thousand, one hundred eleven".