2102131211 has 2 divisors, whose sum is σ = 2102131212. Its totient is φ = 2102131210.

The previous prime is 2102131181. The next prime is 2102131261. The reversal of 2102131211 is 1121312012.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2102131211 - 2¹⁸ = 2101869067 is a prime.

It is not a weakly prime, because it can be changed into another prime (2102131261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1051065605 + 1051065606.

It is an arithmetic number, because the mean of its divisors is an integer number (1051065606).

Almost surely, 2^2102131211 is an apocalyptic number.

2102131211 is a deficient number, since it is larger than the sum of its proper divisors (1).

2102131211 is an equidigital number, since it uses as much as digits as its factorization.

2102131211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24, while the sum is 14.

The square root of 2102131211 is about 45849.0044711987. The cubic root of 2102131211 is about 1281.0122223961.

Adding to 2102131211 its reverse (1121312012), we get a palindrome (3223443223).

The spelling of 2102131211 in words is "two billion, one hundred two million, one hundred thirty-one thousand, two hundred eleven".