302142023 has 4 divisors (see below), whose sum is σ = 302442480. Its totient is φ = 301841568.

The previous prime is 302142013. The next prime is 302142059. The reversal of 302142023 is 320241203.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 302142023 - 2²⁰ = 301093447 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 302141992 and 302142010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (302142013) 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, 148715 + ... + 150732.

It is an arithmetic number, because the mean of its divisors is an integer number (75610620).

Almost surely, 2^302142023 is an apocalyptic number.

302142023 is a deficient number, since it is larger than the sum of its proper divisors (300457).

302142023 is a wasteful number, since it uses less digits than its factorization.

302142023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300456.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 302142023 is about 17382.2329693282. The cubic root of 302142023 is about 671.0224405643.

Adding to 302142023 its reverse (320241203), we get a palindrome (622383226).

The spelling of 302142023 in words is "three hundred two million, one hundred forty-two thousand, twenty-three".