102305130012340 has 12 divisors (see below), whose sum is σ = 214840773025956. Its totient is φ = 40922052004928.

The previous prime is 102305130012289. The next prime is 102305130012347. The reversal of 102305130012340 is 43210031503201.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 65918875473936 + 36386254538404 = 8119044^2 + 6032102^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102305130012347) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2557628250289 + ... + 2557628250328.

It is an arithmetic number, because the mean of its divisors is an integer number (17903397752163).

Almost surely, 2^{102305130012340} is an apocalyptic number.

102305130012340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102305130012340 is an abundant number, since it is smaller than the sum of its proper divisors (112535643013616).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102305130012340 is a wasteful number, since it uses less digits than its factorization.

102305130012340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5115256500626 (or 5115256500624 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

Adding to 102305130012340 its reverse (43210031503201), we get a palindrome (145515161515541).

The spelling of 102305130012340 in words is "one hundred two trillion, three hundred five billion, one hundred thirty million, twelve thousand, three hundred forty".