213030123101 has 8 divisors (see below), whose sum is σ = 218300914104. Its totient is φ = 207762900480.

The previous prime is 213030123083. The next prime is 213030123107. The reversal of 213030123101 is 101321030312.

It can be written as a sum of positive squares in 4 ways, for example, as 51726679225 + 161303443876 = 227435^2 + 401626^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 213030123101 - 2¹⁸ = 213029860957 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 213030123101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213030123107) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 771020 + ... + 1010213.

It is an arithmetic number, because the mean of its divisors is an integer number (27287614263).

Almost surely, 2^213030123101 is an apocalyptic number.

It is an amenable number.

213030123101 is a deficient number, since it is larger than the sum of its proper divisors (5270791003).

213030123101 is a wasteful number, since it uses less digits than its factorization.

213030123101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1784191.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 213030123101 its reverse (101321030312), we get a palindrome (314351153413).

The spelling of 213030123101 in words is "two hundred thirteen billion, thirty million, one hundred twenty-three thousand, one hundred one".