302120660142 has 144 divisors (see below), whose sum is σ = 802591208640. Its totient is φ = 81770742144.

The previous prime is 302120660137. The next prime is 302120660167. The reversal of 302120660142 is 241066021203.

302120660142 is a `hidden beast` number, since 3 + 0 + 2 + 12 + 0 + 6 + 601 + 42 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1244203 + ... + 1467065.

It is an arithmetic number, because the mean of its divisors is an integer number (5573550060).

Almost surely, 2^302120660142 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 302120660142, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (401295604320).

302120660142 is an abundant number, since it is smaller than the sum of its proper divisors (500470548498).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

302120660142 is a wasteful number, since it uses less digits than its factorization.

302120660142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222967 (or 222957 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

Adding to 302120660142 its reverse (241066021203), we get a palindrome (543186681345).

The spelling of 302120660142 in words is "three hundred two billion, one hundred twenty million, six hundred sixty thousand, one hundred forty-two".