11320451 has 4 divisors (see below), whose sum is σ = 11327400. Its totient is φ = 11313504.

The previous prime is 11320433. The next prime is 11320457. The reversal of 11320451 is 15402311.

11320451 is digitally balanced in base 2, because in such base 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 a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11320451 is a prime.

It is a super-2 number, since 2×11320451² = 256305221686802, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11320457) 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, 440 + ... + 4778.

It is an arithmetic number, because the mean of its divisors is an integer number (2831850).

Almost surely, 2^11320451 is an apocalyptic number.

11320451 is a deficient number, since it is larger than the sum of its proper divisors (6949).

11320451 is an equidigital number, since it uses as much as digits as its factorization.

11320451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6948.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 11320451 is about 3364.5877905027. The cubic root of 11320451 is about 224.5369968607.

Adding to 11320451 its reverse (15402311), we get a palindrome (26722762).

The spelling of 11320451 in words is "eleven million, three hundred twenty thousand, four hundred fifty-one".