1021134013203 has 16 divisors (see below), whose sum is σ = 1441888321536. Its totient is φ = 640583821440.

The previous prime is 1021134013181. The next prime is 1021134013301. The reversal of 1021134013203 is 3023104311201.

It is not a de Polignac number, because 1021134013203 - 2¹³ = 1021134005011 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1021134013203.

It is not an unprimeable number, because it can be changed into a prime (1021134014203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1736883 + ... + 2249228.

It is an arithmetic number, because the mean of its divisors is an integer number (90118020096).

Almost surely, 2^{1021134013203} is an apocalyptic number.

1021134013203 is a deficient number, since it is larger than the sum of its proper divisors (420754308333).

1021134013203 is a wasteful number, since it uses less digits than its factorization.

1021134013203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3991154.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 1021134013203 its reverse (3023104311201), we get a palindrome (4044238324404).

The spelling of 1021134013203 in words is "one trillion, twenty-one billion, one hundred thirty-four million, thirteen thousand, two hundred three".