1103142511 has 8 divisors (see below), whose sum is σ = 1131496784. Its totient is φ = 1074911040.

The previous prime is 1103142497. The next prime is 1103142539. The reversal of 1103142511 is 1152413011.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1103142511 - 2²³ = 1094753903 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1103142541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12366 + ... + 48571.

It is an arithmetic number, because the mean of its divisors is an integer number (141437098).

Almost surely, 2^1103142511 is an apocalyptic number.

1103142511 is a deficient number, since it is larger than the sum of its proper divisors (28354273).

1103142511 is an equidigital number, since it uses as much as digits as its factorization.

1103142511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61401.

The product of its (nonzero) digits is 120, while the sum is 19.

The square root of 1103142511 is about 33213.5892519914. The cubic root of 1103142511 is about 1033.2621964788.

Adding to 1103142511 its reverse (1152413011), we get a palindrome (2255555522).

The spelling of 1103142511 in words is "one billion, one hundred three million, one hundred forty-two thousand, five hundred eleven".