303020001 has 32 divisors (see below), whose sum is σ = 458720640. Its totient is φ = 197640000.

The previous prime is 303019979. The next prime is 303020017. The reversal of 303020001 is 100020303.

It is a happy number.

It is not a de Polignac number, because 303020001 - 2²¹ = 300922849 is a prime.

It is a super-2 number, since 2×303020001² = 183642242012080002, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (303020021) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 413031 + ... + 413763.

It is an arithmetic number, because the mean of its divisors is an integer number (14335020).

Almost surely, 2^303020001 is an apocalyptic number.

It is an amenable number.

303020001 is a deficient number, since it is larger than the sum of its proper divisors (155700639).

303020001 is a wasteful number, since it uses less digits than its factorization.

303020001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1054 (or 1048 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 9.

The square root of 303020001 is about 17407.4696897625. The cubic root of 303020001 is about 671.6717745002.

Adding to 303020001 its reverse (100020303), we get a palindrome (403040304).

The spelling of 303020001 in words is "three hundred three million, twenty thousand, one".