1020023013203 has 4 divisors (see below), whose sum is σ = 1064371839888. Its totient is φ = 975674186520.

The previous prime is 1020023013167. The next prime is 1020023013259. The reversal of 1020023013203 is 3023103200201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1020023013203 - 2¹² = 1020023009107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1020023013703) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22174413308 + ... + 22174413353.

It is an arithmetic number, because the mean of its divisors is an integer number (266092959972).

Almost surely, 2^{1020023013203} is an apocalyptic number.

1020023013203 is a deficient number, since it is larger than the sum of its proper divisors (44348826685).

1020023013203 is an equidigital number, since it uses as much as digits as its factorization.

1020023013203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44348826684.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 1020023013203 its reverse (3023103200201), we get a palindrome (4043126213404).

The spelling of 1020023013203 in words is "one trillion, twenty billion, twenty-three million, thirteen thousand, two hundred three".