211013133320 has 64 divisors (see below), whose sum is σ = 517992330240. Its totient is φ = 76724492800.

The previous prime is 211013133259. The next prime is 211013133337. The reversal of 211013133320 is 23331310112.

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 = 211013133292 and 211013133301.

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, 6488300 + ... + 6520740.

It is an arithmetic number, because the mean of its divisors is an integer number (8093630160).

Almost surely, 2^211013133320 is an apocalyptic number.

211013133320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211013133320 is an abundant number, since it is smaller than the sum of its proper divisors (306979196920).

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

211013133320 is a wasteful number, since it uses less digits than its factorization.

211013133320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47246 (or 47242 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 211013133320 its reverse (23331310112), we get a palindrome (234344443432).

The spelling of 211013133320 in words is "two hundred eleven billion, thirteen million, one hundred thirty-three thousand, three hundred twenty".