211310111203020 has 72 divisors (see below), whose sum is σ = 640975473587904. Its totient is φ = 56349233791488.

The previous prime is 211310111202991. The next prime is 211310111203031. The reversal of 211310111203020 is 20302111013112.

211310111203020 is a `hidden beast` number, since 21 + 1 + 310 + 1 + 11 + 20 + 302 + 0 = 666.

211310111203020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 211310111202984 and 211310111203002.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 97484637 + ... + 99628683.

Almost surely, 2^{211310111203020} is an apocalyptic number.

211310111203020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211310111203020 is an abundant number, since it is smaller than the sum of its proper divisors (429665362384884).

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

211310111203020 is a wasteful number, since it uses less digits than its factorization.

211310111203020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2691599 (or 2691594 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 211310111203020 its reverse (20302111013112), we get a palindrome (231612222216132).

The spelling of 211310111203020 in words is "two hundred eleven trillion, three hundred ten billion, one hundred eleven million, two hundred three thousand, twenty".