31231303131103 has 8 divisors (see below), whose sum is σ = 31582357239600. Its totient is φ = 30880252147008.

The previous prime is 31231303131079. The next prime is 31231303131107. The reversal of 31231303131103 is 30113130313213.

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 31231303131103 - 2⁵ = 31231303131071 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 (31231303131107) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23563213 + ... + 24853321.

It is an arithmetic number, because the mean of its divisors is an integer number (3947794654950).

Almost surely, 2^{31231303131103} is an apocalyptic number.

31231303131103 is a deficient number, since it is larger than the sum of its proper divisors (351054108497).

31231303131103 is a wasteful number, since it uses less digits than its factorization.

31231303131103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1562201.

The product of its (nonzero) digits is 1458, while the sum is 25.

Adding to 31231303131103 its reverse (30113130313213), we get a palindrome (61344433444316).

The spelling of 31231303131103 in words is "thirty-one trillion, two hundred thirty-one billion, three hundred three million, one hundred thirty-one thousand, one hundred three".