31310103311 has 16 divisors (see below), whose sum is σ = 33331544064. Its totient is φ = 29309069184.

The previous prime is 31310103301. The next prime is 31310103313. The reversal of 31310103311 is 11330101313.

It is a cyclic number.

It is not a de Polignac number, because 31310103311 - 2⁶ = 31310103247 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31310103311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31310103313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2382986 + ... + 2396088.

It is an arithmetic number, because the mean of its divisors is an integer number (2083221504).

Almost surely, 2^31310103311 is an apocalyptic number.

31310103311 is a deficient number, since it is larger than the sum of its proper divisors (2021440753).

31310103311 is a wasteful number, since it uses less digits than its factorization.

31310103311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13870.

The product of its (nonzero) digits is 81, while the sum is 17.

Adding to 31310103311 its reverse (11330101313), we get a palindrome (42640204624).

The spelling of 31310103311 in words is "thirty-one billion, three hundred ten million, one hundred three thousand, three hundred eleven".