213143100023 has 32 divisors (see below), whose sum is σ = 248975700480. Its totient is φ = 178709385600.

The previous prime is 213143100017. The next prime is 213143100047. The reversal of 213143100023 is 320001341312.

It is a cyclic number.

It is not a de Polignac number, because 213143100023 - 2⁶ = 213143099959 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 213143099968 and 213143100004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213143100013) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 29423840 + ... + 29431082.

It is an arithmetic number, because the mean of its divisors is an integer number (7780490640).

Almost surely, 2^213143100023 is an apocalyptic number.

213143100023 is a deficient number, since it is larger than the sum of its proper divisors (35832600457).

213143100023 is a wasteful number, since it uses less digits than its factorization.

213143100023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7847.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 213143100023 its reverse (320001341312), we get a palindrome (533144441335).

The spelling of 213143100023 in words is "two hundred thirteen billion, one hundred forty-three million, one hundred thousand, twenty-three".