31311103101 has 16 divisors (see below), whose sum is σ = 42735403008. Its totient is φ = 20382498800.

The previous prime is 31311103093. The next prime is 31311103111. The reversal of 31311103101 is 10130111313.

It is a cyclic number.

It is not a de Polignac number, because 31311103101 - 2³ = 31311103093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31311103111) 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, 196845 + ... + 318386.

It is an arithmetic number, because the mean of its divisors is an integer number (2670962688).

Almost surely, 2^31311103101 is an apocalyptic number.

It is an amenable number.

31311103101 is a deficient number, since it is larger than the sum of its proper divisors (11424299907).

31311103101 is a wasteful number, since it uses less digits than its factorization.

31311103101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 515712.

The product of its (nonzero) digits is 27, while the sum is 15.

Adding to 31311103101 its reverse (10130111313), we get a palindrome (41441214414).

The spelling of 31311103101 in words is "thirty-one billion, three hundred eleven million, one hundred three thousand, one hundred one".