31241102013 has 24 divisors (see below), whose sum is σ = 51819374880. Its totient is φ = 17937473760.

The previous prime is 31241101999. The next prime is 31241102021. The reversal of 31241102013 is 31020114213.

It is not a de Polignac number, because 31241102013 - 2⁸ = 31241101757 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31241102813) 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 23 ways as a sum of consecutive naturals, for example, 8302506 + ... + 8306267.

It is an arithmetic number, because the mean of its divisors is an integer number (2159140620).

Almost surely, 2^31241102013 is an apocalyptic number.

31241102013 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

31241102013 is a deficient number, since it is larger than the sum of its proper divisors (20578272867).

31241102013 is a wasteful number, since it uses less digits than its factorization.

31241102013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16608809 (or 16608806 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 31241102013 its reverse (31020114213), we get a palindrome (62261216226).

The spelling of 31241102013 in words is "thirty-one billion, two hundred forty-one million, one hundred two thousand, thirteen".