102102010957 has 2 divisors, whose sum is σ = 102102010958. Its totient is φ = 102102010956.

The previous prime is 102102010949. The next prime is 102102011021. The reversal of 102102010957 is 759010201201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 56946185956 + 45155825001 = 238634^2 + 212499^2 .

It is a cyclic number.

It is not a de Polignac number, because 102102010957 - 2³ = 102102010949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102102010357) 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, 51051005478 + 51051005479.

It is an arithmetic number, because the mean of its divisors is an integer number (51051005479).

Almost surely, 2^102102010957 is an apocalyptic number.

It is an amenable number.

102102010957 is a deficient number, since it is larger than the sum of its proper divisors (1).

102102010957 is an equidigital number, since it uses as much as digits as its factorization.

102102010957 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1260, while the sum is 28.

The spelling of 102102010957 in words is "one hundred two billion, one hundred two million, ten thousand, nine hundred fifty-seven".