1103313131 has 4 divisors (see below), whose sum is σ = 1117279200. Its totient is φ = 1089347064.

The previous prime is 1103313121. The next prime is 1103313143. The reversal of 1103313131 is 1313133011.

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 1103313131 - 2⁶ = 1103313067 is a prime.

It is a super-2 number, since 2×1103313131² = 2434599730074046322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1103313121) 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, 6982916 + ... + 6983073.

It is an arithmetic number, because the mean of its divisors is an integer number (279319800).

Almost surely, 2^1103313131 is an apocalyptic number.

1103313131 is a deficient number, since it is larger than the sum of its proper divisors (13966069).

1103313131 is an equidigital number, since it uses as much as digits as its factorization.

1103313131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13966068.

The product of its (nonzero) digits is 81, while the sum is 17.

The square root of 1103313131 is about 33216.1576796595. The cubic root of 1103313131 is about 1033.3154643343.

Adding to 1103313131 its reverse (1313133011), we get a palindrome (2416446142).

The spelling of 1103313131 in words is "one billion, one hundred three million, three hundred thirteen thousand, one hundred thirty-one".