2031002020 has 24 divisors (see below), whose sum is σ = 4288939200. Its totient is φ = 807860832.

The previous prime is 2031002011. The next prime is 2031002027. The reversal of 2031002020 is 202001302.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 2031001988 and 2031002006.

It is not an unprimeable number, because it can be changed into a prime (2031002027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 280080 + ... + 287239.

It is an arithmetic number, because the mean of its divisors is an integer number (178705800).

Almost surely, 2^2031002020 is an apocalyptic number.

2031002020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2031002020 is an abundant number, since it is smaller than the sum of its proper divisors (2257937180).

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

2031002020 is a wasteful number, since it uses less digits than its factorization.

2031002020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 567507 (or 567505 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 2031002020 is about 45066.6397682365. The cubic root of 2031002020 is about 1266.3977155970.

Adding to 2031002020 its reverse (202001302), we get a palindrome (2233003322).

It can be divided in two parts, 203100 and 2020, that added together give a triangular number (205120 = T₆₄₀).

The spelling of 2031002020 in words is "two billion, thirty-one million, two thousand, twenty".