210032302121 has 2 divisors, whose sum is σ = 210032302122. Its totient is φ = 210032302120.

The previous prime is 210032302111. The next prime is 210032302163. The reversal of 210032302121 is 121203230012.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 125255827225 + 84776474896 = 353915^2 + 291164^2 .

It is a cyclic number.

It is not a de Polignac number, because 210032302121 - 2¹⁴ = 210032285737 is a prime.

It is a super-2 number, since 2×210032302121² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 210032302121.

It is not a weakly prime, because it can be changed into another prime (210032302111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105016151060 + 105016151061.

It is an arithmetic number, because the mean of its divisors is an integer number (105016151061).

Almost surely, 2^210032302121 is an apocalyptic number.

It is an amenable number.

210032302121 is a deficient number, since it is larger than the sum of its proper divisors (1).

210032302121 is an equidigital number, since it uses as much as digits as its factorization.

210032302121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 210032302121 its reverse (121203230012), we get a palindrome (331235532133).

The spelling of 210032302121 in words is "two hundred ten billion, thirty-two million, three hundred two thousand, one hundred twenty-one".