2120313021003 has 30 divisors (see below), whose sum is σ = 3175912463724. Its totient is φ = 1409744864304.

The previous prime is 2120313020993. The next prime is 2120313021017. The reversal of 2120313021003 is 3001203130212.

It is not a de Polignac number, because 2120313021003 - 2⁶ = 2120313020939 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2120313021803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 11175376 + ... + 11363522.

Almost surely, 2^{2120313021003} is an apocalyptic number.

2120313021003 is a deficient number, since it is larger than the sum of its proper divisors (1055599442721).

2120313021003 is an frugal number, since it uses more digits than its factorization.

2120313021003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188905 (or 188523 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 2120313021003 its reverse (3001203130212), we get a palindrome (5121516151215).

The spelling of 2120313021003 in words is "two trillion, one hundred twenty billion, three hundred thirteen million, twenty-one thousand, three".