213311003423653 has 2 divisors, whose sum is σ = 213311003423654. Its totient is φ = 213311003423652.

The previous prime is 213311003423621. The next prime is 213311003423659. The reversal of 213311003423653 is 356324300113312.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 210213519582564 + 3097483841089 = 14498742^2 + 1759967^2 .

It is a cyclic number.

It is not a de Polignac number, because 213311003423653 - 2⁵ = 213311003423621 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213311003423659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106655501711826 + 106655501711827.

It is an arithmetic number, because the mean of its divisors is an integer number (106655501711827).

Almost surely, 2^{213311003423653} is an apocalyptic number.

It is an amenable number.

213311003423653 is a deficient number, since it is larger than the sum of its proper divisors (1).

213311003423653 is an equidigital number, since it uses as much as digits as its factorization.

213311003423653 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 116640, while the sum is 37.

Adding to 213311003423653 its reverse (356324300113312), we get a palindrome (569635303536965).

The spelling of 213311003423653 in words is "two hundred thirteen trillion, three hundred eleven billion, three million, four hundred twenty-three thousand, six hundred fifty-three".