1011103213 has 2 divisors, whose sum is σ = 1011103214. Its totient is φ = 1011103212.

The previous prime is 1011103211. The next prime is 1011103229. The reversal of 1011103213 is 3123011101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 914336644 + 96766569 = 30238^2 + 9837^2 .

It is a cyclic number.

It is not a de Polignac number, because 1011103213 - 2¹ = 1011103211 is a prime.

Together with 1011103211, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 1011103193 and 1011103202.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1011103211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505551606 + 505551607.

It is an arithmetic number, because the mean of its divisors is an integer number (505551607).

Almost surely, 2^1011103213 is an apocalyptic number.

It is an amenable number.

1011103213 is a deficient number, since it is larger than the sum of its proper divisors (1).

1011103213 is an equidigital number, since it uses as much as digits as its factorization.

1011103213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18, while the sum is 13.

The square root of 1011103213 is about 31797.8491882706. The cubic root of 1011103213 is about 1003.6874569481.

Adding to 1011103213 its reverse (3123011101), we get a palindrome (4134114314).

The spelling of 1011103213 in words is "one billion, eleven million, one hundred three thousand, two hundred thirteen".