2031020051 has 4 divisors (see below), whose sum is σ = 2031457704. Its totient is φ = 2030582400.

The previous prime is 2031020041. The next prime is 2031020053. The reversal of 2031020051 is 1500201302.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1500201302 = 2 ⋅750100651.

It is a cyclic number.

It is not a de Polignac number, because 2031020051 - 2¹⁰ = 2031019027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2031020053) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 211790 + ... + 221171.

It is an arithmetic number, because the mean of its divisors is an integer number (507864426).

Almost surely, 2^2031020051 is an apocalyptic number.

2031020051 is a deficient number, since it is larger than the sum of its proper divisors (437653).

2031020051 is an equidigital number, since it uses as much as digits as its factorization.

2031020051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 437652.

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 2031020051 is about 45066.8398159889. The cubic root of 2031020051 is about 1266.4014632299.

Adding to 2031020051 its reverse (1500201302), we get a palindrome (3531221353).

The spelling of 2031020051 in words is "two billion, thirty-one million, twenty thousand, fifty-one".