2020001031 has 64 divisors (see below), whose sum is σ = 3151405440. Its totient is φ = 1277752320.

The previous prime is 2020001029. The next prime is 2020001033. The reversal of 2020001031 is 1301000202.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2020001029) and next prime (2020001033).

It is not a de Polignac number, because 2020001031 - 2¹ = 2020001029 is a prime.

It is a super-2 number, since 2×2020001031² = 8160808330482125922, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2020001033) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6372085 + ... + 6372401.

It is an arithmetic number, because the mean of its divisors is an integer number (49240710).

Almost surely, 2^2020001031 is an apocalyptic number.

2020001031 is a deficient number, since it is larger than the sum of its proper divisors (1131404409).

2020001031 is a wasteful number, since it uses less digits than its factorization.

2020001031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 513 (or 507 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 2020001031 is about 44944.4215782115. The cubic root of 2020001031 is about 1264.1070799283.

Adding to 2020001031 its reverse (1301000202), we get a palindrome (3321001233).

The spelling of 2020001031 in words is "two billion, twenty million, one thousand, thirty-one".