2020420431 has 12 divisors (see below), whose sum is σ = 2919813208. Its totient is φ = 1346287824.

The previous prime is 2020420429. The next prime is 2020420433. The reversal of 2020420431 is 1340240202.

2020420431 is a `hidden beast` number, since 202 + 0 + 420 + 43 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (2020420429) and next prime (2020420433).

It is not a de Polignac number, because 2020420431 - 2¹ = 2020420429 is a prime.

It is a super-2 number, since 2×2020420431² = 8164197436004451522, 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 (2020420433) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35140 + ... + 72633.

Almost surely, 2^2020420431 is an apocalyptic number.

2020420431 is a deficient number, since it is larger than the sum of its proper divisors (899392777).

2020420431 is a wasteful number, since it uses less digits than its factorization.

2020420431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109862 (or 109859 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 2020420431 is about 44949.0870986275. The cubic root of 2020420431 is about 1264.1945600523.

Adding to 2020420431 its reverse (1340240202), we get a palindrome (3360660633).

The spelling of 2020420431 in words is "two billion, twenty million, four hundred twenty thousand, four hundred thirty-one".