11434502403 has 8 divisors (see below), whose sum is σ = 16940003600. Its totient is φ = 7623001584.

The previous prime is 11434502393. The next prime is 11434502419. The reversal of 11434502403 is 30420543411.

It is a happy number.

11434502403 is a `hidden beast` number, since 114 + 3 + 4 + 502 + 40 + 3 = 666.

It is not a de Polignac number, because 11434502403 - 2¹² = 11434498307 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 423500089 = 11434502403 / (1 + 1 + 4 + 3 + 4 + 5 + 0 + 2 + 4 + 0 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11434502503) 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, 211750018 + ... + 211750071.

It is an arithmetic number, because the mean of its divisors is an integer number (2117500450).

Almost surely, 2^11434502403 is an apocalyptic number.

11434502403 is a deficient number, since it is larger than the sum of its proper divisors (5505501197).

11434502403 is an equidigital number, since it uses as much as digits as its factorization.

11434502403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423500098 (or 423500092 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The spelling of 11434502403 in words is "eleven billion, four hundred thirty-four million, five hundred two thousand, four hundred three".