2003022312 has 32 divisors (see below), whose sum is σ = 5114102400. Its totient is φ = 653467904.

The previous prime is 2003022299. The next prime is 2003022319. The reversal of 2003022312 is 2132203002.

It is a junction number, because it is equal to n+sod(n) for n = 2003022291 and 2003022300.

It is not an unprimeable number, because it can be changed into a prime (2003022319) 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, 886737 + ... + 888992.

It is an arithmetic number, because the mean of its divisors is an integer number (159815700).

Almost surely, 2^2003022312 is an apocalyptic number.

It is an amenable number.

2003022312 is an abundant number, since it is smaller than the sum of its proper divisors (3111080088).

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

2003022312 is a wasteful number, since it uses less digits than its factorization.

2003022312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1775785 (or 1775781 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 2003022312 is about 44755.1372693683. The cubic root of 2003022312 is about 1260.5553762314. Note that the first 3 decimals are identical.

Adding to 2003022312 its reverse (2132203002), we get a palindrome (4135225314).

The spelling of 2003022312 in words is "two billion, three million, twenty-two thousand, three hundred twelve".