1103423100 has 144 divisors (see below), whose sum is σ = 3619351680. Its totient is φ = 257299200.

The previous prime is 1103423051. The next prime is 1103423149. The reversal of 1103423100 is 13243011.

It is an interprime number because it is at equal distance from previous prime (1103423051) and next prime (1103423149).

It is a super-2 number, since 2×1103423100² = 2435085075227220000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 1103423100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 66655 + ... + 81545.

Almost surely, 2^1103423100 is an apocalyptic number.

1103423100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1103423100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1809675840).

1103423100 is an abundant number, since it is smaller than the sum of its proper divisors (2515928580).

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

1103423100 is a wasteful number, since it uses less digits than its factorization.

1103423100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14940 (or 14933 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 1103423100 is about 33217.8129924292. The cubic root of 1103423100 is about 1033.3497939336.

Adding to 1103423100 its reverse (13243011), we get a palindrome (1116666111).

The spelling of 1103423100 in words is "one billion, one hundred three million, four hundred twenty-three thousand, one hundred".