213204300129 has 12 divisors (see below), whose sum is σ = 307968269076. Its totient is φ = 142133199072.

The previous prime is 213204300109. The next prime is 213204300137. The reversal of 213204300129 is 921003402312.

It is a happy number.

213204300129 is a `hidden beast` number, since 21 + 320 + 4 + 300 + 12 + 9 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 79871238225 + 133333061904 = 282615^2 + 365148^2 .

It is not a de Polignac number, because 213204300129 - 2²⁹ = 212667429217 is a prime.

It is not an unprimeable number, because it can be changed into a prime (213204300109) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 253159 + ... + 700355.

It is an arithmetic number, because the mean of its divisors is an integer number (25664022423).

Almost surely, 2^213204300129 is an apocalyptic number.

It is an amenable number.

213204300129 is a deficient number, since it is larger than the sum of its proper divisors (94763968947).

213204300129 is a wasteful number, since it uses less digits than its factorization.

213204300129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 500176 (or 500173 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The spelling of 213204300129 in words is "two hundred thirteen billion, two hundred four million, three hundred thousand, one hundred twenty-nine".