12530073335861 has 4 divisors (see below), whose sum is σ = 12530112894924. Its totient is φ = 12530033776800.

The previous prime is 12530073335837. The next prime is 12530073335887. The reversal of 12530073335861 is 16853337003521.

12530073335861 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 12321960370225 + 208112965636 = 3510265^2 + 456194^2 .

It is a cyclic number.

It is not a de Polignac number, because 12530073335861 - 2⁶ = 12530073335797 is a prime.

It is a super-2 number, since 2×12530073335861² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12530073365861) 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, 19300550 + ... + 19939191.

It is an arithmetic number, because the mean of its divisors is an integer number (3132528223731).

Almost surely, 2^{12530073335861} is an apocalyptic number.

It is an amenable number.

12530073335861 is a deficient number, since it is larger than the sum of its proper divisors (39559063).

12530073335861 is an equidigital number, since it uses as much as digits as its factorization.

12530073335861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39559062.

The product of its (nonzero) digits is 1360800, while the sum is 47.

The spelling of 12530073335861 in words is "twelve trillion, five hundred thirty billion, seventy-three million, three hundred thirty-five thousand, eight hundred sixty-one".