20310102120 has 384 divisors, whose sum is σ = 78112252800. Its totient is φ = 4177152000.

The previous prime is 20310102107. The next prime is 20310102143. The reversal of 20310102120 is 2120101302.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 20310102096 and 20310102105.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 6531126 + ... + 6534234.

It is an arithmetic number, because the mean of its divisors is an integer number (203417325).

Almost surely, 2^20310102120 is an apocalyptic number.

20310102120 is a gapful number since it is divisible by the number (20) 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 20310102120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39056126400).

20310102120 is an abundant number, since it is smaller than the sum of its proper divisors (57802150680).

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

20310102120 is a wasteful number, since it uses less digits than its factorization.

20310102120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3249 (or 3238 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 20310102120 its reverse (2120101302), we get a palindrome (22430203422).

The spelling of 20310102120 in words is "twenty billion, three hundred ten million, one hundred two thousand, one hundred twenty".