13430331121 has 4 divisors (see below), whose sum is σ = 13446892144. Its totient is φ = 13413770100.

The previous prime is 13430331107. The next prime is 13430331137. The reversal of 13430331121 is 12113303431.

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 not a de Polignac number, because 13430331121 - 2⁹ = 13430330609 is a prime.

It is a super-2 number, since 2×13430331121² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13430331092 and 13430331101.

It is not an unprimeable number, because it can be changed into a prime (13430331181) 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, 8279295 + ... + 8280916.

It is an arithmetic number, because the mean of its divisors is an integer number (3361723036).

Almost surely, 2^13430331121 is an apocalyptic number.

It is an amenable number.

13430331121 is a deficient number, since it is larger than the sum of its proper divisors (16561023).

13430331121 is an equidigital number, since it uses as much as digits as its factorization.

13430331121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16561022.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 13430331121 its reverse (12113303431), we get a palindrome (25543634552).

The spelling of 13430331121 in words is "thirteen billion, four hundred thirty million, three hundred thirty-one thousand, one hundred twenty-one".