1103143011 has 4 divisors (see below), whose sum is σ = 1470857352. Its totient is φ = 735428672.

The previous prime is 1103142991. The next prime is 1103143051. The reversal of 1103143011 is 1103413011.

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 1103143011 - 2¹⁰ = 1103141987 is a prime.

It is a super-2 number, since 2×1103143011² = 2433849005436292242, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1103143051) 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, 183857166 + ... + 183857171.

It is an arithmetic number, because the mean of its divisors is an integer number (367714338).

Almost surely, 2^1103143011 is an apocalyptic number.

1103143011 is a deficient number, since it is larger than the sum of its proper divisors (367714341).

1103143011 is an equidigital number, since it uses as much as digits as its factorization.

1103143011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 367714340.

The product of its (nonzero) digits is 36, while the sum is 15.

The square root of 1103143011 is about 33213.5967790301. The cubic root of 1103143011 is about 1033.2623525877.

Adding to 1103143011 its reverse (1103413011), we get a palindrome (2206556022).

The spelling of 1103143011 in words is "one billion, one hundred three million, one hundred forty-three thousand, eleven".