1320232403 has 8 divisors (see below), whose sum is σ = 1515427680. Its totient is φ = 1126684800.

The previous prime is 1320232399. The next prime is 1320232429. The reversal of 1320232403 is 3042320231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1320232403 - 2² = 1320232399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1320232603) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 410198 + ... + 413403.

It is an arithmetic number, because the mean of its divisors is an integer number (189428460).

Almost surely, 2^1320232403 is an apocalyptic number.

1320232403 is a deficient number, since it is larger than the sum of its proper divisors (195195277).

1320232403 is an equidigital number, since it uses as much as digits as its factorization.

1320232403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 823837.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 1320232403 is about 36335.0024494288. The cubic root of 1320232403 is about 1097.0256847641.

Adding to 1320232403 its reverse (3042320231), we get a palindrome (4362552634).

The spelling of 1320232403 in words is "one billion, three hundred twenty million, two hundred thirty-two thousand, four hundred three".