102044421240 has 32 divisors (see below), whose sum is σ = 306133264080. Its totient is φ = 27211845632.

The previous prime is 102044421239. The next prime is 102044421299. The reversal of 102044421240 is 42124440201.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 102044421240.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 425184969 + ... + 425185208.

Almost surely, 2^102044421240 is an apocalyptic number.

102044421240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102044421240 is an abundant number, since it is smaller than the sum of its proper divisors (204088842840).

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

102044421240 is a wasteful number, since it uses less digits than its factorization.

102044421240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 850370191 (or 850370187 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 24.

Adding to 102044421240 its reverse (42124440201), we get a palindrome (144168861441).

The spelling of 102044421240 in words is "one hundred two billion, forty-four million, four hundred twenty-one thousand, two hundred forty".