2031320041 has 4 divisors (see below), whose sum is σ = 2032019332. Its totient is φ = 2030620752.

The previous prime is 2031320023. The next prime is 2031320099. The reversal of 2031320041 is 1400231302.

It is a happy number.

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 1962844416 + 68475625 = 44304^2 + 8275^2 .

It is a cyclic number.

It is not a de Polignac number, because 2031320041 - 2¹⁵ = 2031287273 is a prime.

It is a super-2 number, since 2×2031320041² = 8252522217936483362, 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 = 2031319997 and 2031320024.

It is not an unprimeable number, because it can be changed into a prime (2031360041) 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 3 ways as a sum of consecutive naturals, for example, 345270 + ... + 351103.

It is an arithmetic number, because the mean of its divisors is an integer number (508004833).

Almost surely, 2^2031320041 is an apocalyptic number.

It is an amenable number.

2031320041 is a deficient number, since it is larger than the sum of its proper divisors (699291).

2031320041 is an equidigital number, since it uses as much as digits as its factorization.

2031320041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 699290.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 2031320041 is about 45070.1679717305. The cubic root of 2031320041 is about 1266.4638110587.

Adding to 2031320041 its reverse (1400231302), we get a palindrome (3431551343).

The spelling of 2031320041 in words is "two billion, thirty-one million, three hundred twenty thousand, forty-one".