13212120103 has 16 divisors (see below), whose sum is σ = 16370222400. Its totient is φ = 10383376896.

The previous prime is 13212120059. The next prime is 13212120107. The reversal of 13212120103 is 30102121231.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13212120103 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13212120107) 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, 473650 + ... + 500767.

It is an arithmetic number, because the mean of its divisors is an integer number (1023138900).

Almost surely, 2^13212120103 is an apocalyptic number.

13212120103 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

13212120103 is a deficient number, since it is larger than the sum of its proper divisors (3158102297).

13212120103 is a wasteful number, since it uses less digits than its factorization.

13212120103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 974586.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 13212120103 its reverse (30102121231), we get a palindrome (43314241334).

The spelling of 13212120103 in words is "thirteen billion, two hundred twelve million, one hundred twenty thousand, one hundred three".