31232031231103 has 4 divisors (see below), whose sum is σ = 31232046568048. Its totient is φ = 31232015894160.

The previous prime is 31232031231101. The next prime is 31232031231127. The reversal of 31232031231103 is 30113213023213.

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 31232031231103 - 2¹ = 31232031231101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31232031231101) by changing a digit.

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, 4042326 + ... + 8877187.

It is an arithmetic number, because the mean of its divisors is an integer number (7808011642012).

Almost surely, 2^{31232031231103} is an apocalyptic number.

31232031231103 is a deficient number, since it is larger than the sum of its proper divisors (15336945).

31232031231103 is a wasteful number, since it uses less digits than its factorization.

31232031231103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15336944.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 31232031231103 its reverse (30113213023213), we get a palindrome (61345244254316).

The spelling of 31232031231103 in words is "thirty-one trillion, two hundred thirty-two billion, thirty-one million, two hundred thirty-one thousand, one hundred three".