213130221301 has 4 divisors (see below), whose sum is σ = 213218403372. Its totient is φ = 213042039232.

The previous prime is 213130221277. The next prime is 213130221307. The reversal of 213130221301 is 103122031312.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 166182599025 + 46947622276 = 407655^2 + 216674^2 .

It is a cyclic number.

It is not a de Polignac number, because 213130221301 - 2⁷ = 213130221173 is a prime.

It is a super-3 number, since 3×213130221301³ (a number of 35 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213130221307) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44087410 + ... + 44092243.

It is an arithmetic number, because the mean of its divisors is an integer number (53304600843).

Almost surely, 2^213130221301 is an apocalyptic number.

It is an amenable number.

213130221301 is a deficient number, since it is larger than the sum of its proper divisors (88182071).

213130221301 is an equidigital number, since it uses as much as digits as its factorization.

213130221301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88182070.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 213130221301 its reverse (103122031312), we get a palindrome (316252252613).

The spelling of 213130221301 in words is "two hundred thirteen billion, one hundred thirty million, two hundred twenty-one thousand, three hundred one".