20023011003 has 8 divisors (see below), whose sum is σ = 26835677008. Its totient is φ = 13279509504.

The previous prime is 20023010999. The next prime is 20023011023. The reversal of 20023011003 is 30011032002.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20023011003 - 2² = 20023010999 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20023011003.

It is not an unprimeable number, because it can be changed into a prime (20023011023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17290450 + ... + 17291607.

It is an arithmetic number, because the mean of its divisors is an integer number (3354459626).

Almost surely, 2^20023011003 is an apocalyptic number.

20023011003 is a deficient number, since it is larger than the sum of its proper divisors (6812666005).

20023011003 is a wasteful number, since it uses less digits than its factorization.

20023011003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34582253.

The product of its (nonzero) digits is 36, while the sum is 12.

Adding to 20023011003 its reverse (30011032002), we get a palindrome (50034043005).

The spelling of 20023011003 in words is "twenty billion, twenty-three million, eleven thousand, three".