1113154403 has 4 divisors (see below), whose sum is σ = 1113480600. Its totient is φ = 1112828208.

The previous prime is 1113154397. The next prime is 1113154409. The reversal of 1113154403 is 3044513111.

It is a happy number.

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 (1113154397) and next prime (1113154409).

It is a cyclic number.

It is not a de Polignac number, because 1113154403 - 2¹² = 1113150307 is a prime.

It is a super-2 number, since 2×1113154403² = 2478225449836572818, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1113154409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 157925 + ... + 164822.

It is an arithmetic number, because the mean of its divisors is an integer number (278370150).

Almost surely, 2^1113154403 is an apocalyptic number.

1113154403 is a deficient number, since it is larger than the sum of its proper divisors (326197).

1113154403 is an equidigital number, since it uses as much as digits as its factorization.

1113154403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326196.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 1113154403 is about 33363.9686338421. The cubic root of 1113154403 is about 1036.3786781613.

Adding to 1113154403 its reverse (3044513111), we get a palindrome (4157667514).

The spelling of 1113154403 in words is "one billion, one hundred thirteen million, one hundred fifty-four thousand, four hundred three".