163213212423 has 8 divisors (see below), whose sum is σ = 217619499136. Its totient is φ = 108807867000.

The previous prime is 163213212401. The next prime is 163213212433. The reversal of 163213212423 is 324212312361.

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

It is not a de Polignac number, because 163213212423 - 2²⁰ = 163212163847 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 (163213212433) 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, 479208 + ... + 745698.

It is an arithmetic number, because the mean of its divisors is an integer number (27202437392).

Almost surely, 2^163213212423 is an apocalyptic number.

163213212423 is a deficient number, since it is larger than the sum of its proper divisors (54406286713).

163213212423 is a wasteful number, since it uses less digits than its factorization.

163213212423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 470645.

The product of its digits is 10368, while the sum is 30.

Adding to 163213212423 its reverse (324212312361), we get a palindrome (487425524784).

The spelling of 163213212423 in words is "one hundred sixty-three billion, two hundred thirteen million, two hundred twelve thousand, four hundred twenty-three".