1320033013 has 4 divisors (see below), whose sum is σ = 1421574028. Its totient is φ = 1218492000.

The previous prime is 1320032899. The next prime is 1320033059. The reversal of 1320033013 is 3103300231.

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

It can be written as a sum of positive squares in 2 ways, for example, as 824436369 + 495596644 = 28713^2 + 22262^2 .

It is a cyclic number.

It is not a de Polignac number, because 1320033013 - 2¹⁷ = 1319901941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1320033073) 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, 50770488 + ... + 50770513.

It is an arithmetic number, because the mean of its divisors is an integer number (355393507).

Almost surely, 2^1320033013 is an apocalyptic number.

1320033013 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1320033013 is a deficient number, since it is larger than the sum of its proper divisors (101541015).

1320033013 is a wasteful number, since it uses less digits than its factorization.

1320033013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101541014.

The product of its (nonzero) digits is 162, while the sum is 16.

The square root of 1320033013 is about 36332.2585727890. The cubic root of 1320033013 is about 1096.9704553557.

Adding to 1320033013 its reverse (3103300231), we get a palindrome (4423333244).

The spelling of 1320033013 in words is "one billion, three hundred twenty million, thirty-three thousand, thirteen".