213311031047 has 2 divisors, whose sum is σ = 213311031048. Its totient is φ = 213311031046.

The previous prime is 213311031029. The next prime is 213311031067. The reversal of 213311031047 is 740130113312.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 213311031047 - 2³⁰ = 212237289223 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213311031067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106655515523 + 106655515524.

It is an arithmetic number, because the mean of its divisors is an integer number (106655515524).

Almost surely, 2^213311031047 is an apocalyptic number.

213311031047 is a deficient number, since it is larger than the sum of its proper divisors (1).

213311031047 is an equidigital number, since it uses as much as digits as its factorization.

213311031047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1512, while the sum is 26.

Adding to 213311031047 its reverse (740130113312), we get a palindrome (953441144359).

The spelling of 213311031047 in words is "two hundred thirteen billion, three hundred eleven million, thirty-one thousand, forty-seven".