163135298423 has 4 divisors (see below), whose sum is σ = 163236689280. Its totient is φ = 163033907568.

The previous prime is 163135298377. The next prime is 163135298461. The reversal of 163135298423 is 324892531361.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 163135298423 - 2¹⁴ = 163135282039 is a prime.

It is a super-2 number, since 2×163135298423² (a number of 23 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 (163135298483) 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, 50693015 + ... + 50696232.

It is an arithmetic number, because the mean of its divisors is an integer number (40809172320).

Almost surely, 2^163135298423 is an apocalyptic number.

163135298423 is a deficient number, since it is larger than the sum of its proper divisors (101390857).

163135298423 is a wasteful number, since it uses less digits than its factorization.

163135298423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101390856.

The product of its digits is 933120, while the sum is 47.

The spelling of 163135298423 in words is "one hundred sixty-three billion, one hundred thirty-five million, two hundred ninety-eight thousand, four hundred twenty-three".