1012203021003 has 8 divisors (see below), whose sum is σ = 1359455152848. Its totient is φ = 669876451584.

The previous prime is 1012203020987. The next prime is 1012203021007. The reversal of 1012203021003 is 3001203022101.

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

It is not a de Polignac number, because 1012203021003 - 2⁴ = 1012203020987 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1012203021007) 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, 1231390126 + ... + 1231390947.

It is an arithmetic number, because the mean of its divisors is an integer number (169931894106).

Almost surely, 2^{1012203021003} is an apocalyptic number.

1012203021003 is a deficient number, since it is larger than the sum of its proper divisors (347252131845).

1012203021003 is a wasteful number, since it uses less digits than its factorization.

1012203021003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2462781213.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 1012203021003 its reverse (3001203022101), we get a palindrome (4013406043104).

The spelling of 1012203021003 in words is "one trillion, twelve billion, two hundred three million, twenty-one thousand, three".