103021211213 has 2 divisors, whose sum is σ = 103021211214. Its totient is φ = 103021211212.

The previous prime is 103021211207. The next prime is 103021211239. The reversal of 103021211213 is 312112120301.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 58609020649 + 44412190564 = 242093^2 + 210742^2 .

It is a cyclic number.

It is not a de Polignac number, because 103021211213 - 2⁴ = 103021211197 is a prime.

It is a super-2 number, since 2×103021211213² (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 103021211191 and 103021211200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (103021291213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51510605606 + 51510605607.

It is an arithmetic number, because the mean of its divisors is an integer number (51510605607).

Almost surely, 2^103021211213 is an apocalyptic number.

It is an amenable number.

103021211213 is a deficient number, since it is larger than the sum of its proper divisors (1).

103021211213 is an equidigital number, since it uses as much as digits as its factorization.

103021211213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 103021211213 its reverse (312112120301), we get a palindrome (415133331514).

The spelling of 103021211213 in words is "one hundred three billion, twenty-one million, two hundred eleven thousand, two hundred thirteen".