1031313111211 has 4 divisors (see below), whose sum is σ = 1031337919624. Its totient is φ = 1031288302800.

The previous prime is 1031313111209. The next prime is 1031313111223. The reversal of 1031313111211 is 1121113131301.

1031313111211 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 1031313111211 - 2¹ = 1031313111209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1031313111011) 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, 12341745 + ... + 12425026.

It is an arithmetic number, because the mean of its divisors is an integer number (257834479906).

Almost surely, 2^{1031313111211} is an apocalyptic number.

1031313111211 is a deficient number, since it is larger than the sum of its proper divisors (24808413).

1031313111211 is an equidigital number, since it uses as much as digits as its factorization.

1031313111211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24808412.

The product of its (nonzero) digits is 54, while the sum is 19.

Adding to 1031313111211 its reverse (1121113131301), we get a palindrome (2152426242512).

The spelling of 1031313111211 in words is "one trillion, thirty-one billion, three hundred thirteen million, one hundred eleven thousand, two hundred eleven".