2120031650420 has 96 divisors (see below), whose sum is σ = 4780802342400. Its totient is φ = 787292006400.

The previous prime is 2120031650357. The next prime is 2120031650447. The reversal of 2120031650420 is 240561300212.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 2120031650420.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6113036 + ... + 6450524.

It is an arithmetic number, because the mean of its divisors is an integer number (49800024400).

Almost surely, 2^{2120031650420} is an apocalyptic number.

2120031650420 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 2120031650420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2390401171200).

2120031650420 is an abundant number, since it is smaller than the sum of its proper divisors (2660770691980).

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

2120031650420 is a wasteful number, since it uses less digits than its factorization.

2120031650420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337849 (or 337847 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

Adding to 2120031650420 its reverse (240561300212), we get a palindrome (2360592950632).

The spelling of 2120031650420 in words is "two trillion, one hundred twenty billion, thirty-one million, six hundred fifty thousand, four hundred twenty".