11303906 has 4 divisors (see below), whose sum is σ = 16955862. Its totient is φ = 5651952.

The previous prime is 11303899. The next prime is 11303911. The reversal of 11303906 is 60930311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 60930311 = 13 ⋅4686947.

It can be written as a sum of positive squares in only one way, i.e., 11282881 + 21025 = 3359^2 + 145^2 .

It is a super-3 number, since 3×11303906³ (a number of 22 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2825975 + ... + 2825978.

Almost surely, 2^11303906 is an apocalyptic number.

11303906 is a deficient number, since it is larger than the sum of its proper divisors (5651956).

11303906 is an equidigital number, since it uses as much as digits as its factorization.

11303906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5651955.

The product of its (nonzero) digits is 486, while the sum is 23.

The square root of 11303906 is about 3362.1281950574. The cubic root of 11303906 is about 224.4275555228.

The spelling of 11303906 in words is "eleven million, three hundred three thousand, nine hundred six".