1320454423 has 4 divisors (see below), whose sum is σ = 1320530368. Its totient is φ = 1320378480.

The previous prime is 1320454337. The next prime is 1320454537. The reversal of 1320454423 is 3244540231.

It is a happy number.

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 not a de Polignac number, because 1320454423 - 2¹⁷ = 1320323351 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1320454391 and 1320454400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1320452423) 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, 2458 + ... + 51448.

It is an arithmetic number, because the mean of its divisors is an integer number (330132592).

Almost surely, 2^1320454423 is an apocalyptic number.

1320454423 is a deficient number, since it is larger than the sum of its proper divisors (75945).

1320454423 is an equidigital number, since it uses as much as digits as its factorization.

1320454423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75944.

The product of its (nonzero) digits is 11520, while the sum is 28.

The square root of 1320454423 is about 36338.0575017433. The cubic root of 1320454423 is about 1097.0871759557.

Adding to 1320454423 its reverse (3244540231), we get a palindrome (4564994654).

The spelling of 1320454423 in words is "one billion, three hundred twenty million, four hundred fifty-four thousand, four hundred twenty-three".