102122342440 has 128 divisors (see below), whose sum is σ = 240339052800. Its totient is φ = 39018465280.

The previous prime is 102122342423. The next prime is 102122342467. The reversal of 102122342440 is 44243221201.

102122342440 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 31 ways as a sum of consecutive naturals, for example, 25445874 + ... + 25449886.

It is an arithmetic number, because the mean of its divisors is an integer number (1877648850).

Almost surely, 2^102122342440 is an apocalyptic number.

102122342440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 102122342440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (120169526400).

102122342440 is an abundant number, since it is smaller than the sum of its proper divisors (138216710360).

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

102122342440 is a wasteful number, since it uses less digits than its factorization.

102122342440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4387 (or 4383 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 102122342440 its reverse (44243221201), we get a palindrome (146365563641).

The spelling of 102122342440 in words is "one hundred two billion, one hundred twenty-two million, three hundred forty-two thousand, four hundred forty".