1100400103 has 8 divisors (see below), whose sum is σ = 1217344896. Its totient is φ = 986273400.

The previous prime is 1100400101. The next prime is 1100400113. The reversal of 1100400103 is 3010040011.

It is a happy number.

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 1100400103 - 2¹ = 1100400101 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1100400103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1100400101) 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, 703701 + ... + 705262.

It is an arithmetic number, because the mean of its divisors is an integer number (152168112).

Almost surely, 2^1100400103 is an apocalyptic number.

1100400103 is a deficient number, since it is larger than the sum of its proper divisors (116944793).

1100400103 is a wasteful number, since it uses less digits than its factorization.

1100400103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1409045.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 1100400103 is about 33172.2791348439. The cubic root of 1100400103 is about 1032.4052573671.

Adding to 1100400103 its reverse (3010040011), we get a palindrome (4110440114).

The spelling of 1100400103 in words is "one billion, one hundred million, four hundred thousand, one hundred three".