302012140121 has 4 divisors (see below), whose sum is σ = 302013371700. Its totient is φ = 302010908544.

The previous prime is 302012140117. The next prime is 302012140123. The reversal of 302012140121 is 121041210203.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 112385857600 + 189626282521 = 335240^2 + 435461^2 .

It is a cyclic number.

It is not a de Polignac number, because 302012140121 - 2² = 302012140117 is a prime.

It is a super-2 number, since 2×302012140121² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 302012140121.

It is not an unprimeable number, because it can be changed into a prime (302012140123) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 108836 + ... + 784773.

It is an arithmetic number, because the mean of its divisors is an integer number (75503342925).

Almost surely, 2^302012140121 is an apocalyptic number.

It is an amenable number.

302012140121 is a deficient number, since it is larger than the sum of its proper divisors (1231579).

302012140121 is an equidigital number, since it uses as much as digits as its factorization.

302012140121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1231578.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 302012140121 its reverse (121041210203), we get a palindrome (423053350324).

The spelling of 302012140121 in words is "three hundred two billion, twelve million, one hundred forty thousand, one hundred twenty-one".