1320020134 has 4 divisors (see below), whose sum is σ = 1980030204. Its totient is φ = 660010066.

The previous prime is 1320020077. The next prime is 1320020161. The reversal of 1320020134 is 4310200231.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4310200231 = 4423 ⋅974497.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 330005032 + ... + 330005035.

It is an arithmetic number, because the mean of its divisors is an integer number (495007551).

Almost surely, 2^1320020134 is an apocalyptic number.

1320020134 is a deficient number, since it is larger than the sum of its proper divisors (660010070).

1320020134 is an equidigital number, since it uses as much as digits as its factorization.

1320020134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 660010069.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 1320020134 is about 36332.0813331689. The cubic root of 1320020134 is about 1096.9668877862.

Adding to 1320020134 its reverse (4310200231), we get a palindrome (5630220365).

The spelling of 1320020134 in words is "one billion, three hundred twenty million, twenty thousand, one hundred thirty-four".