2002123312 has 40 divisors (see below), whose sum is σ = 4440588800. Its totient is φ = 856636992.

The previous prime is 2002123267. The next prime is 2002123351. The reversal of 2002123312 is 2133212002.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54889 + ... + 83767.

It is an arithmetic number, because the mean of its divisors is an integer number (111014720).

Almost surely, 2^2002123312 is an apocalyptic number.

It is an amenable number.

2002123312 is an abundant number, since it is smaller than the sum of its proper divisors (2438465488).

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

2002123312 is a wasteful number, since it uses less digits than its factorization.

2002123312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29513 (or 29507 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 2002123312 is about 44745.0926024296. The cubic root of 2002123312 is about 1260.3667597826.

Adding to 2002123312 its reverse (2133212002), we get a palindrome (4135335314).

The spelling of 2002123312 in words is "two billion, two million, one hundred twenty-three thousand, three hundred twelve".