31734243113 has 4 divisors (see below), whose sum is σ = 31736921088. Its totient is φ = 31731565140.

The previous prime is 31734243103. The next prime is 31734243119. The reversal of 31734243113 is 31134243713.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 31734243113 - 2²² = 31730048809 is a prime.

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 31734243113.

It is not an unprimeable number, because it can be changed into a prime (31734243119) 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 3 ways as a sum of consecutive naturals, for example, 1321133 + ... + 1344938.

It is an arithmetic number, because the mean of its divisors is an integer number (7934230272).

Almost surely, 2^31734243113 is an apocalyptic number.

It is an amenable number.

31734243113 is a deficient number, since it is larger than the sum of its proper divisors (2677975).

31734243113 is a wasteful number, since it uses less digits than its factorization.

31734243113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2677974.

The product of its digits is 18144, while the sum is 32.

Adding to 31734243113 its reverse (31134243713), we get a palindrome (62868486826).

The spelling of 31734243113 in words is "thirty-one billion, seven hundred thirty-four million, two hundred forty-three thousand, one hundred thirteen".