1002120108 has 24 divisors (see below), whose sum is σ = 2550851520. Its totient is φ = 303672720.

The previous prime is 1002120103. The next prime is 1002120109. The reversal of 1002120108 is 8010212001.

It is not an unprimeable number, because it can be changed into a prime (1002120101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3795778 + ... + 3796041.

It is an arithmetic number, because the mean of its divisors is an integer number (106285480).

Almost surely, 2^1002120108 is an apocalyptic number.

It is an amenable number.

1002120108 is an abundant number, since it is smaller than the sum of its proper divisors (1548731412).

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

1002120108 is a wasteful number, since it uses less digits than its factorization.

1002120108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7591837 (or 7591835 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

The square root of 1002120108 is about 31656.2807038351. The cubic root of 1002120108 is about 1000.7062038254.

Adding to 1002120108 its reverse (8010212001), we get a palindrome (9012332109).

The spelling of 1002120108 in words is "one billion, two million, one hundred twenty thousand, one hundred eight".