302012342021 has 4 divisors (see below), whose sum is σ = 325244060652. Its totient is φ = 278780623392.

The previous prime is 302012341951. The next prime is 302012342069. The reversal of 302012342021 is 120243210203.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 120243210203 = 23 ⋅5227965661.

It can be written as a sum of positive squares in 2 ways, for example, as 171338044900 + 130674297121 = 413930^2 + 361489^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-302012342021 is a prime.

It is a super-2 number, since 2×302012342021² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 302012341984 and 302012342002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (302012342321) 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, 11615859296 + ... + 11615859321.

It is an arithmetic number, because the mean of its divisors is an integer number (81311015163).

Almost surely, 2^302012342021 is an apocalyptic number.

It is an amenable number.

302012342021 is a deficient number, since it is larger than the sum of its proper divisors (23231718631).

302012342021 is a wasteful number, since it uses less digits than its factorization.

302012342021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23231718630.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 302012342021 its reverse (120243210203), we get a palindrome (422255552224).

The spelling of 302012342021 in words is "three hundred two billion, twelve million, three hundred forty-two thousand, twenty-one".