210012321331 has 2 divisors, whose sum is σ = 210012321332. Its totient is φ = 210012321330.

The previous prime is 210012321317. The next prime is 210012321359. The reversal of 210012321331 is 133123210012.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 210012321331 - 2⁷ = 210012321203 is a prime.

It is a super-2 number, since 2×210012321331² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 210012321299 and 210012321308.

It is not a weakly prime, because it can be changed into another prime (210012321391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105006160665 + 105006160666.

It is an arithmetic number, because the mean of its divisors is an integer number (105006160666).

Almost surely, 2^210012321331 is an apocalyptic number.

210012321331 is a deficient number, since it is larger than the sum of its proper divisors (1).

210012321331 is an equidigital number, since it uses as much as digits as its factorization.

210012321331 is an odious number, because the sum of its binary digits is odd.

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

Adding to 210012321331 its reverse (133123210012), we get a palindrome (343135531343).

The spelling of 210012321331 in words is "two hundred ten billion, twelve million, three hundred twenty-one thousand, three hundred thirty-one".