212311312003 has 16 divisors (see below), whose sum is σ = 249185813184. Its totient is φ = 177095255040.

The previous prime is 212311311977. The next prime is 212311312021. The reversal of 212311312003 is 300213113212.

It is a cyclic number.

It is not a de Polignac number, because 212311312003 - 2¹³ = 212311303811 is a prime.

It is not an unprimeable number, because it can be changed into a prime (212311312063) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 817750 + ... + 1045627.

It is an arithmetic number, because the mean of its divisors is an integer number (15574113324).

Almost surely, 2^212311312003 is an apocalyptic number.

212311312003 is a deficient number, since it is larger than the sum of its proper divisors (36874501181).

212311312003 is a wasteful number, since it uses less digits than its factorization.

212311312003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1863822.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 212311312003 its reverse (300213113212), we get a palindrome (512524425215).

The spelling of 212311312003 in words is "two hundred twelve billion, three hundred eleven million, three hundred twelve thousand, three".