102012321340 has 48 divisors (see below), whose sum is σ = 218485639008. Its totient is φ = 39995081984.

The previous prime is 102012321331. The next prime is 102012321391. The reversal of 102012321340 is 43123210201.

It is a happy number.

102012321340 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 1026279 + ... + 1121281.

It is an arithmetic number, because the mean of its divisors is an integer number (4551784146).

Almost surely, 2^102012321340 is an apocalyptic number.

102012321340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102012321340 is an abundant number, since it is smaller than the sum of its proper divisors (116473317668).

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

102012321340 is a wasteful number, since it uses less digits than its factorization.

102012321340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96078 (or 96076 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 102012321340 its reverse (43123210201), we get a palindrome (145135531541).

The spelling of 102012321340 in words is "one hundred two billion, twelve million, three hundred twenty-one thousand, three hundred forty".