211031213130 has 96 divisors (see below), whose sum is σ = 551495153664. Its totient is φ = 55986709248.

The previous prime is 211031213123. The next prime is 211031213143. The reversal of 211031213130 is 31312130112.

211031213130 is a `hidden beast` number, since 211 + 0 + 312 + 13 + 130 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 49109142 + ... + 49113438.

It is an arithmetic number, because the mean of its divisors is an integer number (5744741184).

Almost surely, 2^211031213130 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 211031213130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (275747576832).

211031213130 is an abundant number, since it is smaller than the sum of its proper divisors (340463940534).

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

211031213130 is a wasteful number, since it uses less digits than its factorization.

211031213130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6980 (or 6977 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 211031213130 its reverse (31312130112), we get a palindrome (242343343242).

The spelling of 211031213130 in words is "two hundred eleven billion, thirty-one million, two hundred thirteen thousand, one hundred thirty".