20010312003 has 32 divisors (see below), whose sum is σ = 29242368000. Its totient is φ = 12070749600.

The previous prime is 20010311987. The next prime is 20010312059. The reversal of 20010312003 is 30021301002.

It is a happy number.

It is not a de Polignac number, because 20010312003 - 2⁴ = 20010311987 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20010312003.

It is not an unprimeable number, because it can be changed into a prime (20010312703) 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, 7490358 + ... + 7493028.

It is an arithmetic number, because the mean of its divisors is an integer number (913824000).

Almost surely, 2^20010312003 is an apocalyptic number.

20010312003 is a deficient number, since it is larger than the sum of its proper divisors (9232055997).

20010312003 is a wasteful number, since it uses less digits than its factorization.

20010312003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3663.

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

Adding to 20010312003 its reverse (30021301002), we get a palindrome (50031613005).

The spelling of 20010312003 in words is "twenty billion, ten million, three hundred twelve thousand, three".