210132313021 has 2 divisors, whose sum is σ = 210132313022. Its totient is φ = 210132313020.

The previous prime is 210132312991. The next prime is 210132313031. The reversal of 210132313021 is 120313231012.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 134183016100 + 75949296921 = 366310^2 + 275589^2 .

It is a cyclic number.

It is not a de Polignac number, because 210132313021 - 2⁵ = 210132312989 is a prime.

It is a super-2 number, since 2×210132313021² (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 210132313021.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (210132313031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105066156510 + 105066156511.

It is an arithmetic number, because the mean of its divisors is an integer number (105066156511).

Almost surely, 2^210132313021 is an apocalyptic number.

It is an amenable number.

210132313021 is a deficient number, since it is larger than the sum of its proper divisors (1).

210132313021 is an equidigital number, since it uses as much as digits as its factorization.

210132313021 is an evil number, because the sum of its binary digits is even.

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

Adding to 210132313021 its reverse (120313231012), we get a palindrome (330445544033).

It can be divided in two parts, 210 and 132313021, that added together give a palindrome (132313231).

The spelling of 210132313021 in words is "two hundred ten billion, one hundred thirty-two million, three hundred thirteen thousand, twenty-one".