20344052102 has 48 divisors (see below), whose sum is σ = 35637371280. Its totient is φ = 8687004480.

The previous prime is 20344052089. The next prime is 20344052129. The reversal of 20344052102 is 20125044302.

It is a happy number.

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 23 ways as a sum of consecutive naturals, for example, 220493 + ... + 298839.

It is an arithmetic number, because the mean of its divisors is an integer number (742445235).

Almost surely, 2^20344052102 is an apocalyptic number.

20344052102 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20344052102 is a deficient number, since it is larger than the sum of its proper divisors (15293319178).

20344052102 is a wasteful number, since it uses less digits than its factorization.

20344052102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78437 (or 78426 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

Adding to 20344052102 its reverse (20125044302), we get a palindrome (40469096404).

The spelling of 20344052102 in words is "twenty billion, three hundred forty-four million, fifty-two thousand, one hundred two".