20011232003 has 32 divisors (see below), whose sum is σ = 24872816640. Its totient is φ = 15711252480.

The previous prime is 20011231969. The next prime is 20011232029. The reversal of 20011232003 is 30023211002.

It is a happy number.

It is not a de Polignac number, because 20011232003 - 2¹⁸ = 20010969859 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20011232093) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8710751 + ... + 8713047.

It is an arithmetic number, because the mean of its divisors is an integer number (777275520).

Almost surely, 2^20011232003 is an apocalyptic number.

20011232003 is a deficient number, since it is larger than the sum of its proper divisors (4861584637).

20011232003 is a wasteful number, since it uses less digits than its factorization.

20011232003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4467.

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 20011232003 its reverse (30023211002), we get a palindrome (50034443005).

The spelling of 20011232003 in words is "twenty billion, eleven million, two hundred thirty-two thousand, three".