1301340020 has 36 divisors (see below), whose sum is σ = 2884232484. Its totient is φ = 493136640.

The previous prime is 1301339989. The next prime is 1301340091. The reversal of 1301340020 is 200431031.

It can be written as a sum of positive squares in 2 ways, for example, as 188183524 + 1113156496 = 13718^2 + 33364^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1301339977 and 1301340004.

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 in 11 ways as a sum of consecutive naturals, for example, 82901 + ... + 97340.

It is an arithmetic number, because the mean of its divisors is an integer number (80117569).

Almost surely, 2^1301340020 is an apocalyptic number.

1301340020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1301340020 is an abundant number, since it is smaller than the sum of its proper divisors (1582892464).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1301340020 is a wasteful number, since it uses less digits than its factorization.

1301340020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180288 (or 180267 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 1301340020 is about 36074.0907023309. The cubic root of 1301340020 is about 1091.7677512855.

Adding to 1301340020 its reverse (200431031), we get a palindrome (1501771051).

The spelling of 1301340020 in words is "one billion, three hundred one million, three hundred forty thousand, twenty".