2131103211 has 8 divisors (see below), whose sum is σ = 2844593664. Its totient is φ = 1419174120.

The previous prime is 2131103197. The next prime is 2131103243. The reversal of 2131103211 is 1123011312.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2131103211 - 2⁵ = 2131103179 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2131101211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 387151 + ... + 392616.

It is an arithmetic number, because the mean of its divisors is an integer number (355574208).

Almost surely, 2^2131103211 is an apocalyptic number.

2131103211 is a deficient number, since it is larger than the sum of its proper divisors (713490453).

2131103211 is an equidigital number, since it uses as much as digits as its factorization.

2131103211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 780681.

The product of its (nonzero) digits is 36, while the sum is 15.

The square root of 2131103211 is about 46163.8734401696. The cubic root of 2131103211 is about 1286.8704481913.

Adding to 2131103211 its reverse (1123011312), we get a palindrome (3254114523).

The spelling of 2131103211 in words is "two billion, one hundred thirty-one million, one hundred three thousand, two hundred eleven".