2103231111111 has 96 divisors (see below), whose sum is σ = 3457039971840. Its totient is φ = 1221501295872.

The previous prime is 2103231111101. The next prime is 2103231111119. The reversal of 2103231111111 is 1111111323012.

2103231111111 is a `hidden beast` number, since 210 + 3 + 231 + 111 + 111 = 666.

It is not a de Polignac number, because 2103231111111 - 2¹⁰ = 2103231110087 is a prime.

It is a super-2 number, since 2×2103231111111² (a number of 25 digits) contains 22 as substring.

2103231111111 is a modest number, since divided by 1111111 gives 210323 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2103231111119) 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, 1308792670 + ... + 1308794276.

It is an arithmetic number, because the mean of its divisors is an integer number (36010833040).

Almost surely, 2^{2103231111111} is an apocalyptic number.

2103231111111 is a deficient number, since it is larger than the sum of its proper divisors (1353808860729).

2103231111111 is a wasteful number, since it uses less digits than its factorization.

2103231111111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3525 (or 3522 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 18.

Adding to 2103231111111 its reverse (1111111323012), we get a palindrome (3214342434123).

The spelling of 2103231111111 in words is "two trillion, one hundred three billion, two hundred thirty-one million, one hundred eleven thousand, one hundred eleven".