2111302020 has 96 divisors (see below), whose sum is σ = 6273469440. Its totient is φ = 529386880.

The previous prime is 2111302013. The next prime is 2111302073. The reversal of 2111302020 is 202031112.

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 = 2111301987 and 2111302005.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 68455 + ... + 94385.

It is an arithmetic number, because the mean of its divisors is an integer number (65348640).

Almost surely, 2^2111302020 is an apocalyptic number.

2111302020 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 2111302020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3136734720).

2111302020 is an abundant number, since it is smaller than the sum of its proper divisors (4162167420).

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

2111302020 is a wasteful number, since it uses less digits than its factorization.

2111302020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26025 (or 26023 counting only the distinct ones).

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

The square root of 2111302020 is about 45948.9066246412. The cubic root of 2111302020 is about 1282.8723783692.

Adding to 2111302020 its reverse (202031112), we get a palindrome (2313333132).

The spelling of 2111302020 in words is "two billion, one hundred eleven million, three hundred two thousand, twenty".