213404422423 has 12 divisors (see below), whose sum is σ = 234513161640. Its totient is φ = 193925309312.

The previous prime is 213404422417. The next prime is 213404422463. The reversal of 213404422423 is 324224404312.

It is not a de Polignac number, because 213404422423 - 2⁵ = 213404422391 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 (213404422403) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12723061 + ... + 12739822.

It is an arithmetic number, because the mean of its divisors is an integer number (19542763470).

Almost surely, 2^213404422423 is an apocalyptic number.

213404422423 is a deficient number, since it is larger than the sum of its proper divisors (21108739217).

213404422423 is a wasteful number, since it uses less digits than its factorization.

213404422423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25462946 (or 25462929 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 31.

Adding to 213404422423 its reverse (324224404312), we get a palindrome (537628826735).

The spelling of 213404422423 in words is "two hundred thirteen billion, four hundred four million, four hundred twenty-two thousand, four hundred twenty-three".