1103020055 has 4 divisors (see below), whose sum is σ = 1323624072. Its totient is φ = 882416040.

The previous prime is 1103020043. The next prime is 1103020067. The reversal of 1103020055 is 5500203011.

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

It is an interprime number because it is at equal distance from previous prime (1103020043) and next prime (1103020067).

It is not a de Polignac number, because 1103020055 - 2⁶ = 1103019991 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 110302001 + ... + 110302010.

It is an arithmetic number, because the mean of its divisors is an integer number (330906018).

Almost surely, 2^1103020055 is an apocalyptic number.

1103020055 is a deficient number, since it is larger than the sum of its proper divisors (220604017).

1103020055 is an equidigital number, since it uses as much as digits as its factorization.

1103020055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220604016.

The product of its (nonzero) digits is 150, while the sum is 17.

The square root of 1103020055 is about 33211.7457385185. The cubic root of 1103020055 is about 1033.2239621206.

Adding to 1103020055 its reverse (5500203011), we get a palindrome (6603223066).

The spelling of 1103020055 in words is "one billion, one hundred three million, twenty thousand, fifty-five".