1103011213 has 4 divisors (see below), whose sum is σ = 1103579100. Its totient is φ = 1102443328.

The previous prime is 1103011183. The next prime is 1103011219. The reversal of 1103011213 is 3121103011.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1014613609 + 88397604 = 31853^2 + 9402^2 .

It is a cyclic number.

It is not a de Polignac number, because 1103011213 - 2¹³ = 1103003021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1103011193 and 1103011202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1103011219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 281020 + ... + 284917.

It is an arithmetic number, because the mean of its divisors is an integer number (275894775).

Almost surely, 2^1103011213 is an apocalyptic number.

It is an amenable number.

1103011213 is a deficient number, since it is larger than the sum of its proper divisors (567887).

1103011213 is an equidigital number, since it uses as much as digits as its factorization.

1103011213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 567886.

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

The square root of 1103011213 is about 33211.6126226957. The cubic root of 1103011213 is about 1033.2212012791.

Adding to 1103011213 its reverse (3121103011), we get a palindrome (4224114224).

The spelling of 1103011213 in words is "one billion, one hundred three million, eleven thousand, two hundred thirteen".