12143071365481 has 9 divisors (see below), whose sum is σ = 14125642004631. Its totient is φ = 10408325976552.

The previous prime is 12143071365473. The next prime is 12143071365493. The reversal of 12143071365481 is 18456317034121.

The square root of 12143071365481 is 3484691.

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

It can be written as a sum of positive squares in only one way, i.e., 11129996907225 + 1013074458256 = 3336165^2 + 1006516^2 .

It is not a de Polignac number, because 12143071365481 - 2³ = 12143071365473 is a prime.

It is a super-2 number, since 2×12143071365481² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12143071365181) 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, 24143931 + ... + 24641743.

Almost surely, 2^{12143071365481} is an apocalyptic number.

12143071365481 is the 3484691-st square number.

12143071365481 is the 1742346-th centered octagonal number.

It is an amenable number.

12143071365481 is a deficient number, since it is larger than the sum of its proper divisors (1982570639150).

12143071365481 is an frugal number, since it uses more digits than its factorization.

12143071365481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 995640 (or 497820 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 46.

The spelling of 12143071365481 in words is "twelve trillion, one hundred forty-three billion, seventy-one million, three hundred sixty-five thousand, four hundred eighty-one".