1113646403 has 4 divisors (see below), whose sum is σ = 1124458608. Its totient is φ = 1102834200.

The previous prime is 1113646393. The next prime is 1113646423. The reversal of 1113646403 is 3046463111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3046463111 = 1759 ⋅1731929.

It is a cyclic number.

It is not a de Polignac number, because 1113646403 - 2²⁶ = 1046537539 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1113646423) 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, 5405948 + ... + 5406153.

It is an arithmetic number, because the mean of its divisors is an integer number (281114652).

Almost surely, 2^1113646403 is an apocalyptic number.

1113646403 is a deficient number, since it is larger than the sum of its proper divisors (10812205).

1113646403 is a wasteful number, since it uses less digits than its factorization.

1113646403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10812204.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 1113646403 is about 33371.3410428769. The cubic root of 1113646403 is about 1036.5313443754.

The spelling of 1113646403 in words is "one billion, one hundred thirteen million, six hundred forty-six thousand, four hundred three".