2120303023020 has 288 divisors, whose sum is σ = 7935761328768. Its totient is φ = 446232416256.

The previous prime is 2120303023009. The next prime is 2120303023049. The reversal of 2120303023020 is 203203030212.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 2120303022984 and 2120303023002.

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, 6339832 + ... + 6665888.

It is an arithmetic number, because the mean of its divisors is an integer number (27554726836).

Almost surely, 2^{2120303023020} is an apocalyptic number.

2120303023020 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 2120303023020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3967880664384).

2120303023020 is an abundant number, since it is smaller than the sum of its proper divisors (5815458305748).

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

2120303023020 is a wasteful number, since it uses less digits than its factorization.

2120303023020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326489 (or 326484 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 2120303023020 its reverse (203203030212), we get a palindrome (2323506053232).

The spelling of 2120303023020 in words is "two trillion, one hundred twenty billion, three hundred three million, twenty-three thousand, twenty".