1103021023 has 8 divisors (see below), whose sum is σ = 1219973888. Its totient is φ = 990654624.

The previous prime is 1103020999. The next prime is 1103021027. The reversal of 1103021023 is 3201203011.

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 1103021023 - 2²⁹ = 566150111 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1103020994 and 1103021012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1103021027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1146111 + ... + 1147072.

It is an arithmetic number, because the mean of its divisors is an integer number (152496736).

Almost surely, 2^1103021023 is an apocalyptic number.

1103021023 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1103021023 is a deficient number, since it is larger than the sum of its proper divisors (116952865).

1103021023 is a wasteful number, since it uses less digits than its factorization.

1103021023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2293233.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 1103021023 is about 33211.7603116727. The cubic root of 1103021023 is about 1033.2242643697.

Adding to 1103021023 its reverse (3201203011), we get a palindrome (4304224034).

The spelling of 1103021023 in words is "one billion, one hundred three million, twenty-one thousand, twenty-three".