13040021343 has 8 divisors (see below), whose sum is σ = 18409441968. Its totient is φ = 8181974144.

The previous prime is 13040021329. The next prime is 13040021363. The reversal of 13040021343 is 34312004031.

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

It is a cyclic number.

It is not a de Polignac number, because 13040021343 - 2⁶ = 13040021279 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13040021363) 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, 127843296 + ... + 127843397.

It is an arithmetic number, because the mean of its divisors is an integer number (2301180246).

Almost surely, 2^13040021343 is an apocalyptic number.

13040021343 is a deficient number, since it is larger than the sum of its proper divisors (5369420625).

13040021343 is a wasteful number, since it uses less digits than its factorization.

13040021343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255686713.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 13040021343 its reverse (34312004031), we get a palindrome (47352025374).

The spelling of 13040021343 in words is "thirteen billion, forty million, twenty-one thousand, three hundred forty-three".