102103951 has 2 divisors, whose sum is σ = 102103952. Its totient is φ = 102103950.

The previous prime is 102103949. The next prime is 102103957. The reversal of 102103951 is 159301201.

It is a weak prime.

It is an emirp because it is prime and its reverse (159301201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 102103951 - 2¹ = 102103949 is a prime.

Together with 102103949, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102103957) 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, 51051975 + 51051976.

It is an arithmetic number, because the mean of its divisors is an integer number (51051976).

Almost surely, 2^102103951 is an apocalyptic number.

102103951 is a deficient number, since it is larger than the sum of its proper divisors (1).

102103951 is an equidigital number, since it uses as much as digits as its factorization.

102103951 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 270, while the sum is 22.

The square root of 102103951 is about 10104.6499691973. The cubic root of 102103951 is about 467.3915422285.

It can be divided in two parts, 10210 and 3951, that added together give a square (14161 = 119²).

The spelling of 102103951 in words is "one hundred two million, one hundred three thousand, nine hundred fifty-one".