20011032003 has 8 divisors (see below), whose sum is σ = 26956442128. Its totient is φ = 13203154944.

The previous prime is 20011031983. The next prime is 20011032007. The reversal of 20011032003 is 30023011002.

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 20011032003 - 2²² = 20006837699 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 20011032003.

It is not an unprimeable number, because it can be changed into a prime (20011032007) 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, 34382926 + ... + 34383507.

It is an arithmetic number, because the mean of its divisors is an integer number (3369555266).

Almost surely, 2^20011032003 is an apocalyptic number.

20011032003 is a deficient number, since it is larger than the sum of its proper divisors (6945410125).

20011032003 is an equidigital number, since it uses as much as digits as its factorization.

20011032003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68766533.

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

Adding to 20011032003 its reverse (30023011002), we get a palindrome (50034043005).

The spelling of 20011032003 in words is "twenty billion, eleven million, thirty-two thousand, three".