1303020001 has 4 divisors (see below), whose sum is σ = 1305922500. Its totient is φ = 1300117504.

The previous prime is 1303019983. The next prime is 1303020031. The reversal of 1303020001 is 1000203031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1000203031 = 61 ⋅16396771.

It can be written as a sum of positive squares in 2 ways, for example, as 646430625 + 656589376 = 25425^2 + 25624^2 .

It is a cyclic number.

It is not a de Polignac number, because 1303020001 - 2⁹ = 1303019489 is a prime.

It is a super-2 number, since 2×1303020001² = 3395722246012080002, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1303020001.

It is not an unprimeable number, because it can be changed into a prime (1303020031) 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, 1450576 + ... + 1451473.

It is an arithmetic number, because the mean of its divisors is an integer number (326480625).

Almost surely, 2^1303020001 is an apocalyptic number.

It is an amenable number.

1303020001 is a deficient number, since it is larger than the sum of its proper divisors (2902499).

1303020001 is an equidigital number, since it uses as much as digits as its factorization.

1303020001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2902498.

The product of its (nonzero) digits is 18, while the sum is 10.

The square root of 1303020001 is about 36097.3683389801. The cubic root of 1303020001 is about 1092.2373596235.

Adding to 1303020001 its reverse (1000203031), we get a palindrome (2303223032).

The spelling of 1303020001 in words is "one billion, three hundred three million, twenty thousand, one".