211031213204 has 24 divisors (see below), whose sum is σ = 422304949248. Its totient is φ = 90389979360.

The previous prime is 211031213147. The next prime is 211031213251. The reversal of 211031213204 is 402312130112.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2115764 + ... + 2213259.

It is an arithmetic number, because the mean of its divisors is an integer number (17596039552).

Almost surely, 2^211031213204 is an apocalyptic number.

It is an amenable number.

211031213204 is an abundant number, since it is smaller than the sum of its proper divisors (211273736044).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

211031213204 is a wasteful number, since it uses less digits than its factorization.

211031213204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4330775 (or 4330773 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 211031213204 its reverse (402312130112), we get a palindrome (613343343316).

The spelling of 211031213204 in words is "two hundred eleven billion, thirty-one million, two hundred thirteen thousand, two hundred four".