13101121 has 4 divisors (see below), whose sum is σ = 14292144. Its totient is φ = 11910100.

The previous prime is 13101119. The next prime is 13101157. The reversal of 13101121 is 12110131.

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: 12110131 = 11 ⋅1100921.

It is a cyclic number.

It is not a de Polignac number, because 13101121 - 2¹ = 13101119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13101098 and 13101107.

It is not an unprimeable number, because it can be changed into a prime (13101521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 595495 + ... + 595516.

It is an arithmetic number, because the mean of its divisors is an integer number (3573036).

Almost surely, 2^13101121 is an apocalyptic number.

13101121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

13101121 is a deficient number, since it is larger than the sum of its proper divisors (1191023).

13101121 is a wasteful number, since it uses less digits than its factorization.

13101121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1191022.

The product of its (nonzero) digits is 6, while the sum is 10.

The square root of 13101121 is about 3619.5470711126. The cubic root of 13101121 is about 235.7415597108.

Adding to 13101121 its reverse (12110131), we get a palindrome (25211252).

The spelling of 13101121 in words is "thirteen million, one hundred one thousand, one hundred twenty-one".