1021013013203 has 16 divisors (see below), whose sum is σ = 1044280473600. Its totient is φ = 998009868960.

The previous prime is 1021013013131. The next prime is 1021013013233. The reversal of 1021013013203 is 3023103101201.

It is a cyclic number.

It is not a de Polignac number, because 1021013013203 - 2⁸ = 1021013012947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1021013013233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31075058 + ... + 31107896.

It is an arithmetic number, because the mean of its divisors is an integer number (65267529600).

Almost surely, 2^{1021013013203} is an apocalyptic number.

1021013013203 is a deficient number, since it is larger than the sum of its proper divisors (23267460397).

1021013013203 is a wasteful number, since it uses less digits than its factorization.

1021013013203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36842.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 1021013013203 its reverse (3023103101201), we get a palindrome (4044116114404).

The spelling of 1021013013203 in words is "one trillion, twenty-one billion, thirteen million, thirteen thousand, two hundred three".