13032121361 has 4 divisors (see below), whose sum is σ = 14893852992. Its totient is φ = 11170389732.

The previous prime is 13032121357. The next prime is 13032121363. The reversal of 13032121361 is 16312123031.

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: 16312123031 = 2939 ⋅5550229.

It is a cyclic number.

It is not a de Polignac number, because 13032121361 - 2² = 13032121357 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13032121363) 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, 930865805 + ... + 930865818.

It is an arithmetic number, because the mean of its divisors is an integer number (3723463248).

Almost surely, 2^13032121361 is an apocalyptic number.

It is an amenable number.

13032121361 is a deficient number, since it is larger than the sum of its proper divisors (1861731631).

13032121361 is an equidigital number, since it uses as much as digits as its factorization.

13032121361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1861731630.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 13032121361 its reverse (16312123031), we get a palindrome (29344244392).

The spelling of 13032121361 in words is "thirteen billion, thirty-two million, one hundred twenty-one thousand, three hundred sixty-one".