2021123011003 has 8 divisors (see below), whose sum is σ = 2069708275008. Its totient is φ = 1972609674504.

The previous prime is 2021123011001. The next prime is 2021123011007. The reversal of 2021123011003 is 3001103211202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2021123011003 - 2¹ = 2021123011001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2021123011001) 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, 17925001 + ... + 18037402.

It is an arithmetic number, because the mean of its divisors is an integer number (258713534376).

Almost surely, 2^{2021123011003} is an apocalyptic number.

2021123011003 is a deficient number, since it is larger than the sum of its proper divisors (48585264005).

2021123011003 is a wasteful number, since it uses less digits than its factorization.

2021123011003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35963753.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 2021123011003 its reverse (3001103211202), we get a palindrome (5022226222205).

The spelling of 2021123011003 in words is "two trillion, twenty-one billion, one hundred twenty-three million, eleven thousand, three".