102130340042 has 8 divisors (see below), whose sum is σ = 155294078916. Its totient is φ = 50365647072.

The previous prime is 102130340033. The next prime is 102130340077. The reversal of 102130340042 is 240043031201.

It can be written as a sum of positive squares in 2 ways, for example, as 97950846841 + 4179493201 = 312971^2 + 64649^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 102130339996 and 102130340023.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 349761293 + ... + 349761584.

Almost surely, 2^102130340042 is an apocalyptic number.

102130340042 is a deficient number, since it is larger than the sum of its proper divisors (53163738874).

102130340042 is an equidigital number, since it uses as much as digits as its factorization.

102130340042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 699522952.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 102130340042 its reverse (240043031201), we get a palindrome (342173371243).

The spelling of 102130340042 in words is "one hundred two billion, one hundred thirty million, three hundred forty thousand, forty-two".