31506134113 has 8 divisors (see below), whose sum is σ = 32256737280. Its totient is φ = 30758875200.

The previous prime is 31506134089. The next prime is 31506134147. The reversal of 31506134113 is 31143160513.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 31506134113 - 2⁹ = 31506133601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31506134713) 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 7 ways as a sum of consecutive naturals, for example, 816993 + ... + 854686.

It is an arithmetic number, because the mean of its divisors is an integer number (4032092160).

Almost surely, 2^31506134113 is an apocalyptic number.

It is an amenable number.

31506134113 is a deficient number, since it is larger than the sum of its proper divisors (750603167).

31506134113 is a wasteful number, since it uses less digits than its factorization.

31506134113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1672127.

The product of its (nonzero) digits is 3240, while the sum is 28.

Adding to 31506134113 its reverse (31143160513), we get a palindrome (62649294626).

The spelling of 31506134113 in words is "thirty-one billion, five hundred six million, one hundred thirty-four thousand, one hundred thirteen".