31127247955997 has 8 divisors (see below), whose sum is σ = 32728480046040. Its totient is φ = 29561207780160.

The previous prime is 31127247955967. The next prime is 31127247956003. The reversal of 31127247955997 is 79955974272113.

It can be written as a sum of positive squares in 4 ways, for example, as 5390843468761 + 25736404487236 = 2321819^2 + 5073106^2 .

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 31127247955997 - 2¹⁰ = 31127247954973 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 31127247955997.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31127247955967) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8797976738 + ... + 8797980275.

It is an arithmetic number, because the mean of its divisors is an integer number (4091060005755).

Almost surely, 2^{31127247955997} is an apocalyptic number.

It is an amenable number.

31127247955997 is a deficient number, since it is larger than the sum of its proper divisors (1601232090043).

31127247955997 is a wasteful number, since it uses less digits than its factorization.

31127247955997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17595957103.

The product of its digits is 300056400, while the sum is 71.

The spelling of 31127247955997 in words is "thirty-one trillion, one hundred twenty-seven billion, two hundred forty-seven million, nine hundred fifty-five thousand, nine hundred ninety-seven".