11423115 has 48 divisors (see below), whose sum is σ = 22104576. Its totient is φ = 5409600.

The previous prime is 11423107. The next prime is 11423117. The reversal of 11423115 is 51132411.

It is not a de Polignac number, because 11423115 - 2³ = 11423107 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11423117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 23020 + ... + 23510.

It is an arithmetic number, because the mean of its divisors is an integer number (460512).

Almost surely, 2^11423115 is an apocalyptic number.

11423115 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11423115 is a deficient number, since it is larger than the sum of its proper divisors (10681461).

11423115 is a wasteful number, since it uses less digits than its factorization.

11423115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 560 (or 557 counting only the distinct ones).

The product of its digits is 120, while the sum is 18.

The square root of 11423115 is about 3379.8099058971. The cubic root of 11423115 is about 225.2137228507.

Adding to 11423115 its reverse (51132411), we get a palindrome (62555526).

It can be divided in two parts, 1142311 and 5, that added together give a triangular number (1142316 = T₁₅₁₁).

The spelling of 11423115 in words is "eleven million, four hundred twenty-three thousand, one hundred fifteen".