213111030263 has 2 divisors, whose sum is σ = 213111030264. Its totient is φ = 213111030262.

The previous prime is 213111030257. The next prime is 213111030311. The reversal of 213111030263 is 362030111312.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 213111030263 - 2¹⁸ = 213110768119 is a prime.

It is a super-2 number, since 2×213111030263² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213111030203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106555515131 + 106555515132.

It is an arithmetic number, because the mean of its divisors is an integer number (106555515132).

Almost surely, 2^213111030263 is an apocalyptic number.

213111030263 is a deficient number, since it is larger than the sum of its proper divisors (1).

213111030263 is an equidigital number, since it uses as much as digits as its factorization.

213111030263 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 213111030263 its reverse (362030111312), we get a palindrome (575141141575).

The spelling of 213111030263 in words is "two hundred thirteen billion, one hundred eleven million, thirty thousand, two hundred sixty-three".