11403012 has 12 divisors (see below), whose sum is σ = 26607056. Its totient is φ = 3801000.

The previous prime is 11402977. The next prime is 11403013. The reversal of 11403012 is 21030411.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Harshad number since it is a multiple of its sum of digits (12), and also a Moran number because the ratio is a prime number: 950251 = 11403012 / (1 + 1 + 4 + 0 + 3 + 0 + 1 + 2).

It is not an unprimeable number, because it can be changed into a prime (11403013) 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, 475114 + ... + 475137.

Almost surely, 2^11403012 is an apocalyptic number.

11403012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11403012 is an abundant number, since it is smaller than the sum of its proper divisors (15204044).

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

11403012 is a wasteful number, since it uses less digits than its factorization.

11403012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 950258 (or 950256 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 11403012 is about 3376.8346124736. The cubic root of 11403012 is about 225.0815309467.

Adding to 11403012 its reverse (21030411), we get a palindrome (32433423).

The spelling of 11403012 in words is "eleven million, four hundred three thousand, twelve".