11409031 has 4 divisors (see below), whose sum is σ = 11430072. Its totient is φ = 11387992.

The previous prime is 11409017. The next prime is 11409059. The reversal of 11409031 is 13090411.

It is a happy number.

11409031 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13090411 = 19 ⋅688969.

It is a cyclic number.

It is not a de Polignac number, because 11409031 - 2¹⁵ = 11376263 is a prime.

It is a super-2 number, since 2×11409031² = 260331976717922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11409011) 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, 9685 + ... + 10798.

It is an arithmetic number, because the mean of its divisors is an integer number (2857518).

Almost surely, 2^11409031 is an apocalyptic number.

11409031 is a deficient number, since it is larger than the sum of its proper divisors (21041).

11409031 is an equidigital number, since it uses as much as digits as its factorization.

11409031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21040.

The product of its (nonzero) digits is 108, while the sum is 19.

The square root of 11409031 is about 3377.7257141455. The cubic root of 11409031 is about 225.1211265506.

Adding to 11409031 its reverse (13090411), we get a palindrome (24499442).

The spelling of 11409031 in words is "eleven million, four hundred nine thousand, thirty-one".