11331000451 has 4 divisors (see below), whose sum is σ = 11331522504. Its totient is φ = 11330478400.

The previous prime is 11331000427. The next prime is 11331000581. The reversal of 11331000451 is 15400013311.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11331000451 - 2⁵ = 11331000419 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11331000251) 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, 226990 + ... + 272371.

It is an arithmetic number, because the mean of its divisors is an integer number (2832880626).

Almost surely, 2^11331000451 is an apocalyptic number.

11331000451 is a deficient number, since it is larger than the sum of its proper divisors (522053).

11331000451 is an equidigital number, since it uses as much as digits as its factorization.

11331000451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 522052.

The product of its (nonzero) digits is 180, while the sum is 19.

Adding to 11331000451 its reverse (15400013311), we get a palindrome (26731013762).

The spelling of 11331000451 in words is "eleven billion, three hundred thirty-one million, four hundred fifty-one", and thus it is an aban number.