2031425428205 has 4 divisors (see below), whose sum is σ = 2437710513852. Its totient is φ = 1625140342560.

The previous prime is 2031425428177. The next prime is 2031425428309. The reversal of 2031425428205 is 5028245241302.

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

It can be written as a sum of positive squares in 2 ways, for example, as 876946094116 + 1154479334089 = 936454^2 + 1074467^2 .

It is not a de Polignac number, because 2031425428205 - 2²⁸ = 2031156992749 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 203142542816 + ... + 203142542825.

It is an arithmetic number, because the mean of its divisors is an integer number (609427628463).

Almost surely, 2^{2031425428205} is an apocalyptic number.

It is an amenable number.

2031425428205 is a deficient number, since it is larger than the sum of its proper divisors (406285085647).

2031425428205 is an equidigital number, since it uses as much as digits as its factorization.

2031425428205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 406285085646.

The product of its (nonzero) digits is 153600, while the sum is 38.

The spelling of 2031425428205 in words is "two trillion, thirty-one billion, four hundred twenty-five million, four hundred twenty-eight thousand, two hundred five".