211423414240 has 96 divisors (see below), whose sum is σ = 529314730560. Its totient is φ = 79661568000.

The previous prime is 211423414217. The next prime is 211423414253. The reversal of 211423414240 is 42414324112.

211423414240 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 211423414199 and 211423414208.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 365436 + ... + 745915.

It is an arithmetic number, because the mean of its divisors is an integer number (5513695110).

Almost surely, 2^211423414240 is an apocalyptic number.

211423414240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211423414240 is an abundant number, since it is smaller than the sum of its proper divisors (317891316320).

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

211423414240 is a wasteful number, since it uses less digits than its factorization.

211423414240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1111436 (or 1111428 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 28.

Adding to 211423414240 its reverse (42414324112), we get a palindrome (253837738352).

The spelling of 211423414240 in words is "two hundred eleven billion, four hundred twenty-three million, four hundred fourteen thousand, two hundred forty".