11403120 has 40 divisors (see below), whose sum is σ = 35350416. Its totient is φ = 3040768.

The previous prime is 11403113. The next prime is 11403131. The reversal of 11403120 is 2130411.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×11403120² = 260062291468800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 11403096 and 11403105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23517 + ... + 23996.

Almost surely, 2^11403120 is an apocalyptic number.

11403120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11403120 is an abundant number, since it is smaller than the sum of its proper divisors (23947296).

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

11403120 is a wasteful number, since it uses less digits than its factorization.

11403120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47529 (or 47523 counting only the distinct ones).

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

The square root of 11403120 is about 3376.8506037431. The cubic root of 11403120 is about 225.0822415405.

Adding to 11403120 its reverse (2130411), we get a palindrome (13533531).

The spelling of 11403120 in words is "eleven million, four hundred three thousand, one hundred twenty".