31123441101 has 16 divisors (see below), whose sum is σ = 45356364288. Its totient is φ = 18898483200.

The previous prime is 31123441051. The next prime is 31123441121. The reversal of 31123441101 is 10114432113.

It is not a de Polignac number, because 31123441101 - 2¹⁰ = 31123440077 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31123441121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9841380 + ... + 9844541.

It is an arithmetic number, because the mean of its divisors is an integer number (2834772768).

Almost surely, 2^31123441101 is an apocalyptic number.

31123441101 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

31123441101 is a deficient number, since it is larger than the sum of its proper divisors (14232923187).

31123441101 is a wasteful number, since it uses less digits than its factorization.

31123441101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19685972.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 31123441101 its reverse (10114432113), we get a palindrome (41237873214).

The spelling of 31123441101 in words is "thirty-one billion, one hundred twenty-three million, four hundred forty-one thousand, one hundred one".