13404212331 has 8 divisors (see below), whose sum is σ = 18117109200. Its totient is φ = 8813728512.

The previous prime is 13404212317. The next prime is 13404212347. The reversal of 13404212331 is 13321240431.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13404212331 - 2⁹ = 13404211819 is a prime.

It is a super-2 number, since 2×13404212331² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13404212231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30603006 + ... + 30603443.

It is an arithmetic number, because the mean of its divisors is an integer number (2264638650).

Almost surely, 2^13404212331 is an apocalyptic number.

13404212331 is a deficient number, since it is larger than the sum of its proper divisors (4712896869).

13404212331 is an equidigital number, since it uses as much as digits as its factorization.

13404212331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61206525.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 13404212331 its reverse (13321240431), we get a palindrome (26725452762).

The spelling of 13404212331 in words is "thirteen billion, four hundred four million, two hundred twelve thousand, three hundred thirty-one".