13212115503 has 8 divisors (see below), whose sum is σ = 17655390000. Its totient is φ = 8788459008.

The previous prime is 13212115489. The next prime is 13212115529. The reversal of 13212115503 is 30551121231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13212115503 - 2⁴ = 13212115487 is a prime.

It is a super-2 number, since 2×13212115503² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13212115583) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4902928 + ... + 4905621.

It is an arithmetic number, because the mean of its divisors is an integer number (2206923750).

Almost surely, 2^13212115503 is an apocalyptic number.

13212115503 is a deficient number, since it is larger than the sum of its proper divisors (4443274497).

13212115503 is an equidigital number, since it uses as much as digits as its factorization.

13212115503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9809001.

The product of its (nonzero) digits is 900, while the sum is 24.

Adding to 13212115503 its reverse (30551121231), we get a palindrome (43763236734).

The spelling of 13212115503 in words is "thirteen billion, two hundred twelve million, one hundred fifteen thousand, five hundred three".