2102202131 has 2 divisors, whose sum is σ = 2102202132. Its totient is φ = 2102202130.

The previous prime is 2102202077. The next prime is 2102202203. The reversal of 2102202131 is 1312022012.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2102202131 - 2²² = 2098007827 is a prime.

It is a super-2 number, since 2×2102202131² = 8838507599161882322, which contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (2102202631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1051101065 + 1051101066.

It is an arithmetic number, because the mean of its divisors is an integer number (1051101066).

Almost surely, 2^2102202131 is an apocalyptic number.

2102202131 is a deficient number, since it is larger than the sum of its proper divisors (1).

2102202131 is an equidigital number, since it uses as much as digits as its factorization.

2102202131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 2102202131 is about 45849.7778729625. Note that the first 3 decimals coincide. The cubic root of 2102202131 is about 1281.0266281516.

Adding to 2102202131 its reverse (1312022012), we get a palindrome (3414224143).

The spelling of 2102202131 in words is "two billion, one hundred two million, two hundred two thousand, one hundred thirty-one".