1323103011 has 4 divisors (see below), whose sum is σ = 1764137352. Its totient is φ = 882068672.

The previous prime is 1323103009. The next prime is 1323103039. The reversal of 1323103011 is 1103013231.

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

It is a cyclic number.

It is not a de Polignac number, because 1323103011 - 2¹ = 1323103009 is a prime.

It is a super-2 number, since 2×1323103011² = 3501203155434532242, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1323103211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 220517166 + ... + 220517171.

It is an arithmetic number, because the mean of its divisors is an integer number (441034338).

Almost surely, 2^1323103011 is an apocalyptic number.

1323103011 is a deficient number, since it is larger than the sum of its proper divisors (441034341).

1323103011 is an equidigital number, since it uses as much as digits as its factorization.

1323103011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 441034340.

The product of its (nonzero) digits is 54, while the sum is 15.

The square root of 1323103011 is about 36374.4829653976. The cubic root of 1323103011 is about 1097.8202042357.

Adding to 1323103011 its reverse (1103013231), we get a palindrome (2426116242).

The spelling of 1323103011 in words is "one billion, three hundred twenty-three million, one hundred three thousand, eleven".