102420344413 has 4 divisors (see below), whose sum is σ = 102426313180. Its totient is φ = 102414375648.

The previous prime is 102420344407. The next prime is 102420344423. The reversal of 102420344413 is 314443024201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 29272814649 + 73147529764 = 171093^2 + 270458^2 .

It is a cyclic number.

It is not a de Polignac number, because 102420344413 - 2¹⁷ = 102420213341 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102420344423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2958570 + ... + 2992987.

It is an arithmetic number, because the mean of its divisors is an integer number (25606578295).

Almost surely, 2^102420344413 is an apocalyptic number.

It is an amenable number.

102420344413 is a deficient number, since it is larger than the sum of its proper divisors (5968767).

102420344413 is an equidigital number, since it uses as much as digits as its factorization.

102420344413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5968766.

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 102420344413 its reverse (314443024201), we get a palindrome (416863368614).

The spelling of 102420344413 in words is "one hundred two billion, four hundred twenty million, three hundred forty-four thousand, four hundred thirteen".