2020405031 has 16 divisors (see below), whose sum is σ = 2187380160. Its totient is φ = 1860418560.

The previous prime is 2020405021. The next prime is 2020405043. The reversal of 2020405031 is 1305040202.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2020405031 is a prime.

It is a super-2 number, since 2×2020405031² = 8164072978580221922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2020405021) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 231161 + ... + 239741.

It is an arithmetic number, because the mean of its divisors is an integer number (136711260).

Almost surely, 2^2020405031 is an apocalyptic number.

2020405031 is a deficient number, since it is larger than the sum of its proper divisors (166975129).

2020405031 is a wasteful number, since it uses less digits than its factorization.

2020405031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8986.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 2020405031 is about 44948.9157933759. The cubic root of 2020405031 is about 1264.1913480730.

Adding to 2020405031 its reverse (1305040202), we get a palindrome (3325445233).

The spelling of 2020405031 in words is "two billion, twenty million, four hundred five thousand, thirty-one".