102020040124440 has 64 divisors (see below), whose sum is σ = 308920495368960. Its totient is φ = 26951088478080.

The previous prime is 102020040124403. The next prime is 102020040124489. The reversal of 102020040124440 is 44421040020201.

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 102020040124440.

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 15 ways as a sum of consecutive naturals, for example, 3972730156 + ... + 3972755835.

It is an arithmetic number, because the mean of its divisors is an integer number (4826882740140).

Almost surely, 2^{102020040124440} is an apocalyptic number.

102020040124440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102020040124440 is an abundant number, since it is smaller than the sum of its proper divisors (206900455244520).

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

102020040124440 is a wasteful number, since it uses less digits than its factorization.

102020040124440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7945486112 (or 7945486108 counting only the distinct ones).

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

Adding to 102020040124440 its reverse (44421040020201), we get a palindrome (146441080144641).

The spelling of 102020040124440 in words is "one hundred two trillion, twenty billion, forty million, one hundred twenty-four thousand, four hundred forty".