13405740231 has 8 divisors (see below), whose sum is σ = 19249268080. Its totient is φ = 8249686272.

The previous prime is 13405740209. The next prime is 13405740247. The reversal of 13405740231 is 13204750431.

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 13405740231 - 2⁵ = 13405740199 is a prime.

It is a super-2 number, since 2×13405740231² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13405740251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 171868426 + ... + 171868503.

It is an arithmetic number, because the mean of its divisors is an integer number (2406158510).

Almost surely, 2^13405740231 is an apocalyptic number.

13405740231 is a deficient number, since it is larger than the sum of its proper divisors (5843527849).

13405740231 is a wasteful number, since it uses less digits than its factorization.

13405740231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343736945.

The product of its (nonzero) digits is 10080, while the sum is 30.

The spelling of 13405740231 in words is "thirteen billion, four hundred five million, seven hundred forty thousand, two hundred thirty-one".