1320023441 has 4 divisors (see below), whose sum is σ = 1440025584. Its totient is φ = 1200021300.

The previous prime is 1320023437. The next prime is 1320023443. The reversal of 1320023441 is 1443200231.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1320023441 - 2² = 1320023437 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1320023443) 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, 60001055 + ... + 60001076.

It is an arithmetic number, because the mean of its divisors is an integer number (360006396).

Almost surely, 2^1320023441 is an apocalyptic number.

1320023441 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1320023441 is a deficient number, since it is larger than the sum of its proper divisors (120002143).

1320023441 is a wasteful number, since it uses less digits than its factorization.

1320023441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120002142.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 1320023441 is about 36332.1268438829. The cubic root of 1320023441 is about 1096.9678038496.

Adding to 1320023441 its reverse (1443200231), we get a palindrome (2763223672).

The spelling of 1320023441 in words is "one billion, three hundred twenty million, twenty-three thousand, four hundred forty-one".