1031203002021 has 16 divisors (see below), whose sum is σ = 1380152131200. Its totient is φ = 684861654848.

The previous prime is 1031203002001. The next prime is 1031203002077. The reversal of 1031203002021 is 1202003021301.

It is a cyclic number.

It is not a de Polignac number, because 1031203002021 - 2⁶ = 1031203001957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1031203002001) 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 15 ways as a sum of consecutive naturals, for example, 12877735 + ... + 12957563.

It is an arithmetic number, because the mean of its divisors is an integer number (86259508200).

Almost surely, 2^{1031203002021} is an apocalyptic number.

It is an amenable number.

1031203002021 is a deficient number, since it is larger than the sum of its proper divisors (348949129179).

1031203002021 is a wasteful number, since it uses less digits than its factorization.

1031203002021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96108.

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

Adding to 1031203002021 its reverse (1202003021301), we get a palindrome (2233206023322).

The spelling of 1031203002021 in words is "one trillion, thirty-one billion, two hundred three million, two thousand, twenty-one".