2131392685041 has 9 divisors (see below), whose sum is σ = 3078684649209. Its totient is φ = 1420925536836.

The previous prime is 2131392685021. The next prime is 2131392685061. The reversal of 2131392685041 is 1405862931312.

The square root of 2131392685041 is 1459929.

It is a perfect power (a square), and thus also a powerful number.

2131392685041 is a `hidden beast` number, since 2 + 1 + 3 + 139 + 2 + 6 + 8 + 504 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (2131392685021) and next prime (2131392685061).

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 2131392685041 - 2²¹ = 2131390587889 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2131392685001) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 4136466 + ... + 4623108.

Almost surely, 2^{2131392685041} is an apocalyptic number.

2131392685041 is the 1459929-th square number.

2131392685041 is the 729965-th centered octagonal number.

It is an amenable number.

2131392685041 is a deficient number, since it is larger than the sum of its proper divisors (947291964168).

2131392685041 is an frugal number, since it uses more digits than its factorization.

2131392685041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 973292 (or 486646 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The spelling of 2131392685041 in words is "two trillion, one hundred thirty-one billion, three hundred ninety-two million, six hundred eighty-five thousand, forty-one".