2031213020 has 24 divisors (see below), whose sum is σ = 4307784768. Its totient is φ = 804440000.

The previous prime is 2031213017. The next prime is 2031213029. The reversal of 2031213020 is 203121302.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2031212986 and 2031213004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2031213029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 500756 + ... + 504795.

It is an arithmetic number, because the mean of its divisors is an integer number (179491032).

Almost surely, 2^2031213020 is an apocalyptic number.

2031213020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2031213020 is an abundant number, since it is smaller than the sum of its proper divisors (2276571748).

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

2031213020 is a wasteful number, since it uses less digits than its factorization.

2031213020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1005661 (or 1005659 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 2031213020 is about 45068.9806851675. The cubic root of 2031213020 is about 1266.4415692650.

Adding to 2031213020 its reverse (203121302), we get a palindrome (2234334322).

The spelling of 2031213020 in words is "two billion, thirty-one million, two hundred thirteen thousand, twenty".