2031805023 has 4 divisors (see below), whose sum is σ = 2709073368. Its totient is φ = 1354536680.

The previous prime is 2031804967. The next prime is 2031805043. The reversal of 2031805023 is 3205081302.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2031805023 - 2¹⁰ = 2031803999 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2031804984 and 2031805002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2031805043) 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, 338634168 + ... + 338634173.

It is an arithmetic number, because the mean of its divisors is an integer number (677268342).

Almost surely, 2^2031805023 is an apocalyptic number.

2031805023 is a deficient number, since it is larger than the sum of its proper divisors (677268345).

2031805023 is an equidigital number, since it uses as much as digits as its factorization.

2031805023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 677268344.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 2031805023 is about 45075.5479500804. The cubic root of 2031805023 is about 1266.5645933521.

Adding to 2031805023 its reverse (3205081302), we get a palindrome (5236886325).

The spelling of 2031805023 in words is "two billion, thirty-one million, eight hundred five thousand, twenty-three".