12505113333 has 12 divisors (see below), whose sum is σ = 18066081228. Its totient is φ = 8335293120.

The previous prime is 12505113331. The next prime is 12505113353. The reversal of 12505113333 is 33331150521.

12505113333 is a `hidden beast` number, since 12 + 505 + 113 + 3 + 33 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 6301660689 + 6203452644 = 79383^2 + 78762^2 .

It is not a de Polignac number, because 12505113333 - 2¹ = 12505113331 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12505113297 and 12505113306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12505113331) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 64738 + ... + 170883.

It is an arithmetic number, because the mean of its divisors is an integer number (1505506769).

Almost surely, 2^12505113333 is an apocalyptic number.

It is an amenable number.

12505113333 is a deficient number, since it is larger than the sum of its proper divisors (5560967895).

12505113333 is a wasteful number, since it uses less digits than its factorization.

12505113333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241524 (or 241521 counting only the distinct ones).

The product of its (nonzero) digits is 4050, while the sum is 27.

Adding to 12505113333 its reverse (33331150521), we get a palindrome (45836263854).

It can be divided in two parts, 125051 and 13333, that added together give a square (138384 = 372²).

The spelling of 12505113333 in words is "twelve billion, five hundred five million, one hundred thirteen thousand, three hundred thirty-three".