211342333880 has 16 divisors (see below), whose sum is σ = 475520251320. Its totient is φ = 84536933536.

The previous prime is 211342333837. The next prime is 211342333897. The reversal of 211342333880 is 88333243112.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2641779134 + ... + 2641779213.

Almost surely, 2^211342333880 is an apocalyptic number.

211342333880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211342333880 is an abundant number, since it is smaller than the sum of its proper divisors (264177917440).

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

211342333880 is a wasteful number, since it uses less digits than its factorization.

211342333880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5283558358 (or 5283558354 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 38.

Adding to 211342333880 its reverse (88333243112), we get a palindrome (299675576992).

The spelling of 211342333880 in words is "two hundred eleven billion, three hundred forty-two million, three hundred thirty-three thousand, eight hundred eighty".