213232124477 has 2 divisors, whose sum is σ = 213232124478. Its totient is φ = 213232124476.

The previous prime is 213232124411. The next prime is 213232124519. The reversal of 213232124477 is 774421232312.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 142989103321 + 70243021156 = 378139^2 + 265034^2 .

It is a cyclic number.

It is not a de Polignac number, because 213232124477 - 2³⁴ = 196052255293 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 213232124477.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213232724477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106616062238 + 106616062239.

It is an arithmetic number, because the mean of its divisors is an integer number (106616062239).

Almost surely, 2^213232124477 is an apocalyptic number.

It is an amenable number.

213232124477 is a deficient number, since it is larger than the sum of its proper divisors (1).

213232124477 is an equidigital number, since it uses as much as digits as its factorization.

213232124477 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 112896, while the sum is 38.

Adding to 213232124477 its reverse (774421232312), we get a palindrome (987653356789).

The spelling of 213232124477 in words is "two hundred thirteen billion, two hundred thirty-two million, one hundred twenty-four thousand, four hundred seventy-seven".