13113310101221 has 4 divisors (see below), whose sum is σ = 14305429201344. Its totient is φ = 11921191001100.

The previous prime is 13113310101187. The next prime is 13113310101223. The reversal of 13113310101221 is 12210101331131.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13113310101221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13113310101193 and 13113310101202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13113310101223) 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, 596059550045 + ... + 596059550066.

It is an arithmetic number, because the mean of its divisors is an integer number (3576357300336).

Almost surely, 2^{13113310101221} is an apocalyptic number.

13113310101221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

13113310101221 is a deficient number, since it is larger than the sum of its proper divisors (1192119100123).

13113310101221 is a wasteful number, since it uses less digits than its factorization.

13113310101221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1192119100122.

The product of its (nonzero) digits is 108, while the sum is 20.

Adding to 13113310101221 its reverse (12210101331131), we get a palindrome (25323411432352).

The spelling of 13113310101221 in words is "thirteen trillion, one hundred thirteen billion, three hundred ten million, one hundred one thousand, two hundred twenty-one".