20423102102320 has 80 divisors (see below), whose sum is σ = 50319157180320. Its totient is φ = 7695163750400.

The previous prime is 20423102102303. The next prime is 20423102102371. The reversal of 20423102102320 is 2320120132402.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 20423102102291 and 20423102102300.

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, 107259286 + ... + 107449525.

It is an arithmetic number, because the mean of its divisors is an integer number (628989464754).

Almost surely, 2^{20423102102320} is an apocalyptic number.

20423102102320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20423102102320 is an abundant number, since it is smaller than the sum of its proper divisors (29896055078000).

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

20423102102320 is a wasteful number, since it uses less digits than its factorization.

20423102102320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214708894 (or 214708888 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 20423102102320 its reverse (2320120132402), we get a palindrome (22743222234722).

The spelling of 20423102102320 in words is "twenty trillion, four hundred twenty-three billion, one hundred two million, one hundred two thousand, three hundred twenty".