12503545025331 has 4 divisors (see below), whose sum is σ = 16671393367112. Its totient is φ = 8335696683552.

The previous prime is 12503545025327. The next prime is 12503545025351. The reversal of 12503545025331 is 13352054530521.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 12503545025331 - 2² = 12503545025327 is a prime.

It is a super-2 number, since 2×12503545025331² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12503545025331.

It is not an unprimeable number, because it can be changed into a prime (12503545025311) 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, 2083924170886 + ... + 2083924170891.

It is an arithmetic number, because the mean of its divisors is an integer number (4167848341778).

Almost surely, 2^{12503545025331} is an apocalyptic number.

12503545025331 is a deficient number, since it is larger than the sum of its proper divisors (4167848341781).

12503545025331 is an equidigital number, since it uses as much as digits as its factorization.

12503545025331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4167848341780.

The product of its (nonzero) digits is 270000, while the sum is 39.

Adding to 12503545025331 its reverse (13352054530521), we get a palindrome (25855599555852).

The spelling of 12503545025331 in words is "twelve trillion, five hundred three billion, five hundred forty-five million, twenty-five thousand, three hundred thirty-one".