102130341949 has 2 divisors, whose sum is σ = 102130341950. Its totient is φ = 102130341948.

The previous prime is 102130341919. The next prime is 102130341977. The reversal of 102130341949 is 949143031201.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52003609849 + 50126732100 = 228043^2 + 223890^2 .

It is a cyclic number.

It is not a de Polignac number, because 102130341949 - 2⁵ = 102130341917 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102130341919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51065170974 + 51065170975.

It is an arithmetic number, because the mean of its divisors is an integer number (51065170975).

Almost surely, 2^102130341949 is an apocalyptic number.

It is an amenable number.

102130341949 is a deficient number, since it is larger than the sum of its proper divisors (1).

102130341949 is an equidigital number, since it uses as much as digits as its factorization.

102130341949 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23328, while the sum is 37.

The spelling of 102130341949 in words is "one hundred two billion, one hundred thirty million, three hundred forty-one thousand, nine hundred forty-nine".