12503266061 has 16 divisors (see below), whose sum is σ = 14692332480. Its totient is φ = 10489979520.

The previous prime is 12503266051. The next prime is 12503266109. The reversal of 12503266061 is 16066230521.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12503266061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12503266021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1137530 + ... + 1148468.

It is an arithmetic number, because the mean of its divisors is an integer number (918270780).

Almost surely, 2^12503266061 is an apocalyptic number.

12503266061 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12503266061 is a deficient number, since it is larger than the sum of its proper divisors (2189066419).

12503266061 is a wasteful number, since it uses less digits than its factorization.

12503266061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18956.

The product of its (nonzero) digits is 12960, while the sum is 32.

Adding to 12503266061 its reverse (16066230521), we get a palindrome (28569496582).

The spelling of 12503266061 in words is "twelve billion, five hundred three million, two hundred sixty-six thousand, sixty-one".