31231303302103 has 8 divisors (see below), whose sum is σ = 33610544345520. Its totient is φ = 28912296209280.

The previous prime is 31231303302097. The next prime is 31231303302149. The reversal of 31231303302103 is 30120330313213.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 31231303302103 - 2¹⁷ = 31231303171031 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 (31231303308103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15058486573 + ... + 15058488646.

It is an arithmetic number, because the mean of its divisors is an integer number (4201318043190).

Almost surely, 2^{31231303302103} is an apocalyptic number.

31231303302103 is a deficient number, since it is larger than the sum of its proper divisors (2379241043417).

31231303302103 is a wasteful number, since it uses less digits than its factorization.

31231303302103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30116975297.

The product of its (nonzero) digits is 2916, while the sum is 25.

Adding to 31231303302103 its reverse (30120330313213), we get a palindrome (61351633615316).

The spelling of 31231303302103 in words is "thirty-one trillion, two hundred thirty-one billion, three hundred three million, three hundred two thousand, one hundred three".