1021331201203 has 2 divisors, whose sum is σ = 1021331201204. Its totient is φ = 1021331201202.

The previous prime is 1021331201171. The next prime is 1021331201311. The reversal of 1021331201203 is 3021021331201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1021331201203 - 2⁵ = 1021331201171 is a prime.

It is not a weakly prime, because it can be changed into another prime (1021331204203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510665600601 + 510665600602.

It is an arithmetic number, because the mean of its divisors is an integer number (510665600602).

Almost surely, 2^{1021331201203} is an apocalyptic number.

1021331201203 is a deficient number, since it is larger than the sum of its proper divisors (1).

1021331201203 is an equidigital number, since it uses as much as digits as its factorization.

1021331201203 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 1021331201203 its reverse (3021021331201), we get a palindrome (4042352532404).

The spelling of 1021331201203 in words is "one trillion, twenty-one billion, three hundred thirty-one million, two hundred one thousand, two hundred three".