211230031194 has 192 divisors, whose sum is σ = 597170595840. Its totient is φ = 52454407680.

The previous prime is 211230031169. The next prime is 211230031219. The reversal of 211230031194 is 491130032112.

211230031194 is a `hidden beast` number, since 211 + 230 + 0 + 31 + 194 = 666.

It is an interprime number because it is at equal distance from previous prime (211230031169) and next prime (211230031219).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1822572 + ... + 1935000.

It is an arithmetic number, because the mean of its divisors is an integer number (3110263520).

Almost surely, 2^211230031194 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 211230031194, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (298585297920).

211230031194 is an abundant number, since it is smaller than the sum of its proper divisors (385940564646).

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

211230031194 is a wasteful number, since it uses less digits than its factorization.

211230031194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112525 (or 112522 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The spelling of 211230031194 in words is "two hundred eleven billion, two hundred thirty million, thirty-one thousand, one hundred ninety-four".