13163423021 has 8 divisors (see below), whose sum is σ = 15192862464. Its totient is φ = 11171221200.

The previous prime is 13163423011. The next prime is 13163423023. The reversal of 13163423021 is 12032436131.

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 13163423021 - 2¹⁴ = 13163406637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13163423023) 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, 9308645 + ... + 9310058.

It is an arithmetic number, because the mean of its divisors is an integer number (1899107808).

Almost surely, 2^13163423021 is an apocalyptic number.

It is an amenable number.

13163423021 is a deficient number, since it is larger than the sum of its proper divisors (2029439443).

13163423021 is a wasteful number, since it uses less digits than its factorization.

13163423021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18618811.

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 13163423021 its reverse (12032436131), we get a palindrome (25195859152).

The spelling of 13163423021 in words is "thirteen billion, one hundred sixty-three million, four hundred twenty-three thousand, twenty-one".