213023223101 has 8 divisors (see below), whose sum is σ = 229443551064. Its totient is φ = 196607741760.

The previous prime is 213023223079. The next prime is 213023223109. The reversal of 213023223101 is 101322320312.

It can be written as a sum of positive squares in 4 ways, for example, as 1892163001 + 211131060100 = 43499^2 + 459490^2 .

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 213023223101 - 2⁶ = 213023223037 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213023223109) 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, 1120106 + ... + 1296411.

It is an arithmetic number, because the mean of its divisors is an integer number (28680443883).

Almost surely, 2^213023223101 is an apocalyptic number.

It is an amenable number.

213023223101 is a deficient number, since it is larger than the sum of its proper divisors (16420327963).

213023223101 is a wasteful number, since it uses less digits than its factorization.

213023223101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2423311.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 213023223101 its reverse (101322320312), we get a palindrome (314345543413).

The spelling of 213023223101 in words is "two hundred thirteen billion, twenty-three million, two hundred twenty-three thousand, one hundred one".