31031031101 has 12 divisors (see below), whose sum is σ = 36101470752. Its totient is φ = 26594969688.

The previous prime is 31031031079. The next prime is 31031031113. The reversal of 31031031101 is 10113013013.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-31031031101 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 (31031031121) 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 11 ways as a sum of consecutive naturals, for example, 463706 + ... + 526388.

It is an arithmetic number, because the mean of its divisors is an integer number (3008455896).

Almost surely, 2^31031031101 is an apocalyptic number.

It is an amenable number.

31031031101 is a deficient number, since it is larger than the sum of its proper divisors (5070439651).

31031031101 is a wasteful number, since it uses less digits than its factorization.

31031031101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72800 (or 72793 counting only the distinct ones).

The product of its (nonzero) digits is 27, while the sum is 14.

Adding to 31031031101 its reverse (10113013013), we get a palindrome (41144044114).

The spelling of 31031031101 in words is "thirty-one billion, thirty-one million, thirty-one thousand, one hundred one".