31134780085 has 8 divisors (see below), whose sum is σ = 37424744280. Its totient is φ = 24865818624.

The previous prime is 31134780073. The next prime is 31134780097. The reversal of 31134780085 is 58008743113.

It is an interprime number because it is at equal distance from previous prime (31134780073) and next prime (31134780097).

It can be written as a sum of positive squares in 4 ways, for example, as 6921241636 + 24213538449 = 83194^2 + 155607^2 .

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 31134780085 - 2²³ = 31126391477 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5247420 + ... + 5253349.

It is an arithmetic number, because the mean of its divisors is an integer number (4678093035).

Almost surely, 2^31134780085 is an apocalyptic number.

It is an amenable number.

31134780085 is a deficient number, since it is larger than the sum of its proper divisors (6289964195).

31134780085 is a wasteful number, since it uses less digits than its factorization.

31134780085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10501367.

The product of its (nonzero) digits is 80640, while the sum is 40.

The spelling of 31134780085 in words is "thirty-one billion, one hundred thirty-four million, seven hundred eighty thousand, eighty-five".