102040213440 has 112 divisors (see below), whose sum is σ = 353430230400. Its totient is φ = 24737018880.

The previous prime is 102040213399. The next prime is 102040213477. The reversal of 102040213440 is 44312040201.

102040213440 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 polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4820890 + ... + 4842009.

Almost surely, 2^102040213440 is an apocalyptic number.

102040213440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102040213440 is an abundant number, since it is smaller than the sum of its proper divisors (251390016960).

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

102040213440 is a wasteful number, since it uses less digits than its factorization.

102040213440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9662930 (or 9662920 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 102040213440 its reverse (44312040201), we get a palindrome (146352253641).

The spelling of 102040213440 in words is "one hundred two billion, forty million, two hundred thirteen thousand, four hundred forty".