211331132120 has 32 divisors (see below), whose sum is σ = 475526084400. Its totient is φ = 84526935168.

The previous prime is 211331132107. The next prime is 211331132141. The reversal of 211331132120 is 21231133112.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 211331132092 and 211331132101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 478367 + ... + 807153.

Almost surely, 2^211331132120 is an apocalyptic number.

211331132120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211331132120 is an abundant number, since it is smaller than the sum of its proper divisors (264194952280).

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

211331132120 is a wasteful number, since it uses less digits than its factorization.

211331132120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344867 (or 344863 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 211331132120 its reverse (21231133112), we get a palindrome (232562265232).

The spelling of 211331132120 in words is "two hundred eleven billion, three hundred thirty-one million, one hundred thirty-two thousand, one hundred twenty".