20212312003 has 4 divisors (see below), whose sum is σ = 21767105248. Its totient is φ = 18657518760.

The previous prime is 20212311991. The next prime is 20212312079. The reversal of 20212312003 is 30021321202.

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 20212312003 - 2⁵ = 20212311971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20212012003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 777396603 + ... + 777396628.

It is an arithmetic number, because the mean of its divisors is an integer number (5441776312).

Almost surely, 2^20212312003 is an apocalyptic number.

20212312003 is a deficient number, since it is larger than the sum of its proper divisors (1554793245).

20212312003 is a wasteful number, since it uses less digits than its factorization.

20212312003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1554793244.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 20212312003 its reverse (30021321202), we get a palindrome (50233633205).

The spelling of 20212312003 in words is "twenty billion, two hundred twelve million, three hundred twelve thousand, three".