1320028803 has 6 divisors (see below), whose sum is σ = 1906708284. Its totient is φ = 880019196.

The previous prime is 1320028799. The next prime is 1320028813. The reversal of 1320028803 is 3088200231.

It is not a de Polignac number, because 1320028803 - 2² = 1320028799 is a prime.

It is a super-2 number, since 2×1320028803² = 3484952081499225618, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1320028813) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 73334925 + ... + 73334942.

It is an arithmetic number, because the mean of its divisors is an integer number (317784714).

Almost surely, 2^1320028803 is an apocalyptic number.

1320028803 is a deficient number, since it is larger than the sum of its proper divisors (586679481).

1320028803 is a wasteful number, since it uses less digits than its factorization.

1320028803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146669873 (or 146669870 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 1320028803 is about 36332.2006352492. The cubic root of 1320028803 is about 1096.9692891600.

The spelling of 1320028803 in words is "one billion, three hundred twenty million, twenty-eight thousand, eight hundred three".