210133001123321 has 4 divisors (see below), whose sum is σ = 210133144785012. Its totient is φ = 210132857461632.

The previous prime is 210133001123251. The next prime is 210133001123341. The reversal of 210133001123321 is 123321100331012.

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 63770526066025 + 146362475057296 = 7985645^2 + 12098036^2 .

It is a cyclic number.

It is not a de Polignac number, because 210133001123321 - 2²² = 210132996929017 is a prime.

It is a super-2 number, since 2×210133001123321² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (210133001123341) 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, 69614000 + ... + 72569793.

It is an arithmetic number, because the mean of its divisors is an integer number (52533286196253).

Almost surely, 2^{210133001123321} is an apocalyptic number.

It is an amenable number.

210133001123321 is a deficient number, since it is larger than the sum of its proper divisors (143661691).

210133001123321 is a wasteful number, since it uses less digits than its factorization.

210133001123321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143661690.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 210133001123321 its reverse (123321100331012), we get a palindrome (333454101454333).

The spelling of 210133001123321 in words is "two hundred ten trillion, one hundred thirty-three billion, one million, one hundred twenty-three thousand, three hundred twenty-one".