1031110013231 has 4 divisors (see below), whose sum is σ = 1031112454200. Its totient is φ = 1031107572264.

The previous prime is 1031110013209. The next prime is 1031110013237. The reversal of 1031110013231 is 1323100111301.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1031110013231 is a prime.

It is a super-2 number, since 2×1031110013231² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1031110013237) 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, 405416 + ... + 1492173.

It is an arithmetic number, because the mean of its divisors is an integer number (257778113550).

Almost surely, 2^{1031110013231} is an apocalyptic number.

1031110013231 is a deficient number, since it is larger than the sum of its proper divisors (2440969).

1031110013231 is an equidigital number, since it uses as much as digits as its factorization.

1031110013231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2440968.

The product of its (nonzero) digits is 54, while the sum is 17.

Adding to 1031110013231 its reverse (1323100111301), we get a palindrome (2354210124532).

The spelling of 1031110013231 in words is "one trillion, thirty-one billion, one hundred ten million, thirteen thousand, two hundred thirty-one".