13123210541 has 4 divisors (see below), whose sum is σ = 14997954912. Its totient is φ = 11248466172.

The previous prime is 13123210519. The next prime is 13123210553. The reversal of 13123210541 is 14501232131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 14501232131 = 1093 ⋅13267367.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13123210541 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13123219541) 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, 937372175 + ... + 937372188.

It is an arithmetic number, because the mean of its divisors is an integer number (3749488728).

Almost surely, 2^13123210541 is an apocalyptic number.

It is an amenable number.

13123210541 is a deficient number, since it is larger than the sum of its proper divisors (1874744371).

13123210541 is an equidigital number, since it uses as much as digits as its factorization.

13123210541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1874744370.

The product of its (nonzero) digits is 720, while the sum is 23.

Adding to 13123210541 its reverse (14501232131), we get a palindrome (27624442672).

The spelling of 13123210541 in words is "thirteen billion, one hundred twenty-three million, two hundred ten thousand, five hundred forty-one".