13212603 has 48 divisors (see below), whose sum is σ = 21565440. Its totient is φ = 7761600.

The previous prime is 13212599. The next prime is 13212607. The reversal of 13212603 is 30621231.

It is an interprime number because it is at equal distance from previous prime (13212599) and next prime (13212607).

It is not a de Polignac number, because 13212603 - 2² = 13212599 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13212607) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 186058 + ... + 186128.

It is an arithmetic number, because the mean of its divisors is an integer number (449280).

Almost surely, 2^13212603 is an apocalyptic number.

13212603 is a deficient number, since it is larger than the sum of its proper divisors (8352837).

13212603 is a wasteful number, since it uses less digits than its factorization.

13212603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160 (or 157 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 13212603 is about 3634.9144419092. The cubic root of 13212603 is about 236.4083409839.

Adding to 13212603 its reverse (30621231), we get a palindrome (43833834).

The spelling of 13212603 in words is "thirteen million, two hundred twelve thousand, six hundred three".