213120000043 has 2 divisors, whose sum is σ = 213120000044. Its totient is φ = 213120000042.

The previous prime is 213120000019. The next prime is 213120000113. The reversal of 213120000043 is 340000021312.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-213120000043 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 213119999981 and 213120000026.

It is not a weakly prime, because it can be changed into another prime (213120001043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106560000021 + 106560000022.

It is an arithmetic number, because the mean of its divisors is an integer number (106560000022).

Almost surely, 2^213120000043 is an apocalyptic number.

213120000043 is a deficient number, since it is larger than the sum of its proper divisors (1).

213120000043 is an equidigital number, since it uses as much as digits as its factorization.

213120000043 is an evil number, because the sum of its binary digits is even.

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

Adding to 213120000043 its reverse (340000021312), we get a palindrome (553120021355).

The spelling of 213120000043 in words is "two hundred thirteen billion, one hundred twenty million, forty-three", and thus it is an aban number.