10212203131321 has 2 divisors, whose sum is σ = 10212203131322. Its totient is φ = 10212203131320.

The previous prime is 10212203131313. The next prime is 10212203131387. The reversal of 10212203131321 is 12313130221201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7742389725225 + 2469813406096 = 2782515^2 + 1571564^2 .

It is a cyclic number.

It is not a de Polignac number, because 10212203131321 - 2³ = 10212203131313 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10212203131292 and 10212203131301.

It is not a weakly prime, because it can be changed into another prime (10212203131421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5106101565660 + 5106101565661.

It is an arithmetic number, because the mean of its divisors is an integer number (5106101565661).

Almost surely, 2^{10212203131321} is an apocalyptic number.

It is an amenable number.

10212203131321 is a deficient number, since it is larger than the sum of its proper divisors (1).

10212203131321 is an equidigital number, since it uses as much as digits as its factorization.

10212203131321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 10212203131321 its reverse (12313130221201), we get a palindrome (22525333352522).

The spelling of 10212203131321 in words is "ten trillion, two hundred twelve billion, two hundred three million, one hundred thirty-one thousand, three hundred twenty-one".