102202031 has 2 divisors, whose sum is σ = 102202032. Its totient is φ = 102202030.

The previous prime is 102202021. The next prime is 102202033. The reversal of 102202031 is 130202201.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 102202031 - 2¹⁰ = 102201007 is a prime.

It is a super-2 number, since 2×102202031² = 20890510281049922, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 102202033, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102202033) 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, 51101015 + 51101016.

It is an arithmetic number, because the mean of its divisors is an integer number (51101016).

Almost surely, 2^102202031 is an apocalyptic number.

102202031 is a deficient number, since it is larger than the sum of its proper divisors (1).

102202031 is an equidigital number, since it uses as much as digits as its factorization.

102202031 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 11.

The square root of 102202031 is about 10109.5020154308. The cubic root of 102202031 is about 467.5411514959.

Adding to 102202031 its reverse (130202201), we get a palindrome (232404232).

The spelling of 102202031 in words is "one hundred two million, two hundred two thousand, thirty-one".