20102323311020 has 48 divisors (see below), whose sum is σ = 42352271968608. Its totient is φ = 8014794255360.

The previous prime is 20102323310989. The next prime is 20102323311047. The reversal of 20102323311020 is 2011332320102.

20102323311020 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 20102323310983 and 20102323311001.

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, 8094347 + ... + 10282173.

It is an arithmetic number, because the mean of its divisors is an integer number (882338999346).

Almost surely, 2^{20102323311020} is an apocalyptic number.

20102323311020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20102323311020 is an abundant number, since it is smaller than the sum of its proper divisors (22249948657588).

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

20102323311020 is a wasteful number, since it uses less digits than its factorization.

20102323311020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2189330 (or 2189328 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 20102323311020 its reverse (2011332320102), we get a palindrome (22113655631122).

The spelling of 20102323311020 in words is "twenty trillion, one hundred two billion, three hundred twenty-three million, three hundred eleven thousand, twenty".