1020023020003 has 4 divisors (see below), whose sum is σ = 1098486329248. Its totient is φ = 941559710760.

The previous prime is 1020023019979. The next prime is 1020023020019. The reversal of 1020023020003 is 3000203200201.

It is a happy number.

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 1020023020003 - 2⁵ = 1020023019971 is a prime.

It is a super-2 number, since 2×1020023020003² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13), and also a Moran number because the ratio is a prime number: 78463309231 = 1020023020003 / (1 + 0 + 2 + 0 + 0 + 2 + 3 + 0 + 2 + 0 + 0 + 0 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1020023020043) 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 3 ways as a sum of consecutive naturals, for example, 39231654603 + ... + 39231654628.

It is an arithmetic number, because the mean of its divisors is an integer number (274621582312).

Almost surely, 2^{1020023020003} is an apocalyptic number.

1020023020003 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1020023020003 is a deficient number, since it is larger than the sum of its proper divisors (78463309245).

1020023020003 is an equidigital number, since it uses as much as digits as its factorization.

1020023020003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78463309244.

The product of its (nonzero) digits is 72, while the sum is 13.

Adding to 1020023020003 its reverse (3000203200201), we get a palindrome (4020226220204).

The spelling of 1020023020003 in words is "one trillion, twenty billion, twenty-three million, twenty thousand, three".