3130992085681 has 4 divisors (see below), whose sum is σ = 3133443921012. Its totient is φ = 3128540250352.

The previous prime is 3130992085643. The next prime is 3130992085703. The reversal of 3130992085681 is 1865802990313.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1522620263025 + 1608371822656 = 1233945^2 + 1268216^2 .

It is a cyclic number.

It is not a de Polignac number, because 3130992085681 - 2¹¹ = 3130992083633 is a prime.

It is a super-2 number, since 2×3130992085681² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3130992085601) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1225915750 + ... + 1225918303.

It is an arithmetic number, because the mean of its divisors is an integer number (783360980253).

Almost surely, 2^{3130992085681} is an apocalyptic number.

It is an amenable number.

3130992085681 is a deficient number, since it is larger than the sum of its proper divisors (2451835331).

3130992085681 is a wasteful number, since it uses less digits than its factorization.

3130992085681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2451835330.

The product of its (nonzero) digits is 2799360, while the sum is 55.

The spelling of 3130992085681 in words is "three trillion, one hundred thirty billion, nine hundred ninety-two million, eighty-five thousand, six hundred eighty-one".