1003331121996 has 24 divisors (see below), whose sum is σ = 2675549658880. Its totient is φ = 286666034832.

The previous prime is 1003331121979. The next prime is 1003331121997. The reversal of 1003331121996 is 6991211333001.

It is not an unprimeable number, because it can be changed into a prime (1003331121997) 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, 5972208976 + ... + 5972209143.

Almost surely, 2^{1003331121996} is an apocalyptic number.

It is an amenable number.

1003331121996 is an abundant number, since it is smaller than the sum of its proper divisors (1672218536884).

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

1003331121996 is a wasteful number, since it uses less digits than its factorization.

1003331121996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11944418133 (or 11944418131 counting only the distinct ones).

The product of its (nonzero) digits is 26244, while the sum is 39.

Adding to 1003331121996 its reverse (6991211333001), we get a palindrome (7994542454997).

The spelling of 1003331121996 in words is "one trillion, three billion, three hundred thirty-one million, one hundred twenty-one thousand, nine hundred ninety-six".