1103123070 has 128 divisors (see below), whose sum is σ = 3370798080. Its totient is φ = 251475840.

The previous prime is 1103123051. The next prime is 1103123107. The reversal of 1103123070 is 703213011.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1248849 + ... + 1249731.

It is an arithmetic number, because the mean of its divisors is an integer number (26334360).

Almost surely, 2^1103123070 is an apocalyptic number.

1103123070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1103123070, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1685399040).

1103123070 is an abundant number, since it is smaller than the sum of its proper divisors (2267675010).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1103123070 is a wasteful number, since it uses less digits than its factorization.

1103123070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1567 (or 1561 counting only the distinct ones).

The product of its (nonzero) digits is 126, while the sum is 18.

The square root of 1103123070 is about 33213.2965843501. The cubic root of 1103123070 is about 1033.2561266168.

Adding to 1103123070 its reverse (703213011), we get a palindrome (1806336081).

The spelling of 1103123070 in words is "one billion, one hundred three million, one hundred twenty-three thousand, seventy".