2131210099 has 2 divisors, whose sum is σ = 2131210100. Its totient is φ = 2131210098.

The previous prime is 2131210043. The next prime is 2131210111. The reversal of 2131210099 is 9900121312.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2131210099 - 2¹⁵ = 2131177331 is a prime.

It is not a weakly prime, because it can be changed into another prime (2131216099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1065605049 + 1065605050.

It is an arithmetic number, because the mean of its divisors is an integer number (1065605050).

Almost surely, 2^2131210099 is an apocalyptic number.

2131210099 is a deficient number, since it is larger than the sum of its proper divisors (1).

2131210099 is an equidigital number, since it uses as much as digits as its factorization.

2131210099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 972, while the sum is 28.

The square root of 2131210099 is about 46165.0311274670. The cubic root of 2131210099 is about 1286.8919626676.

The spelling of 2131210099 in words is "two billion, one hundred thirty-one million, two hundred ten thousand, ninety-nine".