213122000023 has 2 divisors, whose sum is σ = 213122000024. Its totient is φ = 213122000022.

The previous prime is 213122000009. The next prime is 213122000027. The reversal of 213122000023 is 320000221312.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 213122000023 - 2⁹ = 213121999511 is a prime.

It is a super-2 number, since 2×213122000023² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 213121999970 and 213122000006.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213122000027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106561000011 + 106561000012.

It is an arithmetic number, because the mean of its divisors is an integer number (106561000012).

Almost surely, 2^213122000023 is an apocalyptic number.

213122000023 is a deficient number, since it is larger than the sum of its proper divisors (1).

213122000023 is an equidigital number, since it uses as much as digits as its factorization.

213122000023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 213122000023 its reverse (320000221312), we get a palindrome (533122221335).

The spelling of 213122000023 in words is "two hundred thirteen billion, one hundred twenty-two million, twenty-three", and thus it is an aban number.