213242123023 has 2 divisors, whose sum is σ = 213242123024. Its totient is φ = 213242123022.

The previous prime is 213242122987. The next prime is 213242123041. The reversal of 213242123023 is 320321242312.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-213242123023 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213242123093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106621061511 + 106621061512.

It is an arithmetic number, because the mean of its divisors is an integer number (106621061512).

Almost surely, 2^213242123023 is an apocalyptic number.

213242123023 is a deficient number, since it is larger than the sum of its proper divisors (1).

213242123023 is an equidigital number, since it uses as much as digits as its factorization.

213242123023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 213242123023 its reverse (320321242312), we get a palindrome (533563365335).

The spelling of 213242123023 in words is "two hundred thirteen billion, two hundred forty-two million, one hundred twenty-three thousand, twenty-three".