2031320443411 has 4 divisors (see below), whose sum is σ = 2321509078192. Its totient is φ = 1741131808632.

The previous prime is 2031320443393. The next prime is 2031320443421. The reversal of 2031320443411 is 1143440231302.

It is a happy number.

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 2031320443411 - 2⁵ = 2031320443379 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2031320443411.

It is not an unprimeable number, because it can be changed into a prime (2031320443421) 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, 145094317380 + ... + 145094317393.

It is an arithmetic number, because the mean of its divisors is an integer number (580377269548).

Almost surely, 2^{2031320443411} is an apocalyptic number.

2031320443411 is a deficient number, since it is larger than the sum of its proper divisors (290188634781).

2031320443411 is an equidigital number, since it uses as much as digits as its factorization.

2031320443411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290188634780.

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 2031320443411 its reverse (1143440231302), we get a palindrome (3174760674713).

The spelling of 2031320443411 in words is "two trillion, thirty-one billion, three hundred twenty million, four hundred forty-three thousand, four hundred eleven".