12533212631 has 4 divisors (see below), whose sum is σ = 12533974200. Its totient is φ = 12532451064.

The previous prime is 12533212621. The next prime is 12533212667. The reversal of 12533212631 is 13621233521.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13621233521 = 7 ⋅1945890503.

It is a cyclic number.

It is not a de Polignac number, because 12533212631 - 2⁶ = 12533212567 is a prime.

It is a super-2 number, since 2×12533212631² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12533212594 and 12533212603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12533212621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 355541 + ... + 389198.

It is an arithmetic number, because the mean of its divisors is an integer number (3133493550).

Almost surely, 2^12533212631 is an apocalyptic number.

12533212631 is a deficient number, since it is larger than the sum of its proper divisors (761569).

12533212631 is an equidigital number, since it uses as much as digits as its factorization.

12533212631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 761568.

The product of its digits is 6480, while the sum is 29.

The spelling of 12533212631 in words is "twelve billion, five hundred thirty-three million, two hundred twelve thousand, six hundred thirty-one".