2812103231 has 8 divisors (see below), whose sum is σ = 3220005024. Its totient is φ = 2405744640.

The previous prime is 2812103213. The next prime is 2812103251. The reversal of 2812103231 is 1323012182.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2812103231 - 2¹⁰ = 2812102207 is a prime.

It is a super-2 number, since 2×2812103231² = 15815849163601278722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2812103197 and 2812103206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2812103251) 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 7 ways as a sum of consecutive naturals, for example, 381890 + ... + 389183.

It is an arithmetic number, because the mean of its divisors is an integer number (402500628).

Almost surely, 2^2812103231 is an apocalyptic number.

2812103231 is a deficient number, since it is larger than the sum of its proper divisors (407901793).

2812103231 is an equidigital number, since it uses as much as digits as its factorization.

2812103231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 771601.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 2812103231 is about 53029.2676830446. The cubic root of 2812103231 is about 1411.4876626134.

The spelling of 2812103231 in words is "two billion, eight hundred twelve million, one hundred three thousand, two hundred thirty-one".