302120001 has 12 divisors (see below), whose sum is σ = 437344128. Its totient is φ = 200975544.

The previous prime is 302119997. The next prime is 302120029. The reversal of 302120001 is 100021203.

It is a happy number.

It is not a de Polignac number, because 302120001 - 2² = 302119997 is a prime.

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

It is not an unprimeable number, because it can be changed into a prime (302120041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32085 + ... + 40418.

It is an arithmetic number, because the mean of its divisors is an integer number (36445344).

Almost surely, 2^302120001 is an apocalyptic number.

It is an amenable number.

302120001 is a deficient number, since it is larger than the sum of its proper divisors (135224127).

302120001 is a wasteful number, since it uses less digits than its factorization.

302120001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72972 (or 72969 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 302120001 is about 17381.5994948681. The cubic root of 302120001 is about 671.0061373977.

Adding to 302120001 its reverse (100021203), we get a palindrome (402141204).

The spelling of 302120001 in words is "three hundred two million, one hundred twenty thousand, one".