211411133430 has 128 divisors (see below), whose sum is σ = 616499693568. Its totient is φ = 45349404672.

The previous prime is 211411133419. The next prime is 211411133449. The reversal of 211411133430 is 34331114112.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 211411133430.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 156939 + ... + 668918.

It is an arithmetic number, because the mean of its divisors is an integer number (4816403856).

Almost surely, 2^211411133430 is an apocalyptic number.

211411133430 is an abundant number, since it is smaller than the sum of its proper divisors (405088560138).

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

211411133430 is a wasteful number, since it uses less digits than its factorization.

211411133430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 825950.

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 211411133430 its reverse (34331114112), we get a palindrome (245742247542).

The spelling of 211411133430 in words is "two hundred eleven billion, four hundred eleven million, one hundred thirty-three thousand, four hundred thirty".