1012321013203 has 2 divisors, whose sum is σ = 1012321013204. Its totient is φ = 1012321013202.

The previous prime is 1012321013189. The next prime is 1012321013269. The reversal of 1012321013203 is 3023101232101.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1012321013203 - 2⁹ = 1012321012691 is a prime.

It is not a weakly prime, because it can be changed into another prime (1012321013303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 506160506601 + 506160506602.

It is an arithmetic number, because the mean of its divisors is an integer number (506160506602).

Almost surely, 2^{1012321013203} is an apocalyptic number.

1012321013203 is a deficient number, since it is larger than the sum of its proper divisors (1).

1012321013203 is an equidigital number, since it uses as much as digits as its factorization.

1012321013203 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 1012321013203 its reverse (3023101232101), we get a palindrome (4035422245304).

The spelling of 1012321013203 in words is "one trillion, twelve billion, three hundred twenty-one million, thirteen thousand, two hundred three".