211234322040 has 128 divisors (see below), whose sum is σ = 730876608000. Its totient is φ = 47839154688.

The previous prime is 211234322023. The next prime is 211234322063. The reversal of 211234322040 is 40223432112.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 211234322040.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1061970 + ... + 1245089.

It is an arithmetic number, because the mean of its divisors is an integer number (5709973500).

Almost surely, 2^211234322040 is an apocalyptic number.

211234322040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211234322040 is an abundant number, since it is smaller than the sum of its proper divisors (519642285960).

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

211234322040 is a wasteful number, since it uses less digits than its factorization.

211234322040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2307189 (or 2307185 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 211234322040 its reverse (40223432112), we get a palindrome (251457754152).

The spelling of 211234322040 in words is "two hundred eleven billion, two hundred thirty-four million, three hundred twenty-two thousand, forty".