213033211020 has 72 divisors (see below), whose sum is σ = 738515135904. Its totient is φ = 48693305088.

The previous prime is 213033211009. The next prime is 213033211021. The reversal of 213033211020 is 20112330312.

213033211020 is a `hidden beast` number, since 21 + 303 + 321 + 1 + 0 + 20 = 666.

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 = 213033210984 and 213033211002.

It is not an unprimeable number, because it can be changed into a prime (213033211021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 84535729 + ... + 84538248.

Almost surely, 2^213033211020 is an apocalyptic number.

213033211020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213033211020 is an abundant number, since it is smaller than the sum of its proper divisors (525481924884).

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

213033211020 is a wasteful number, since it uses less digits than its factorization.

213033211020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169073999 (or 169073994 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 213033211020 its reverse (20112330312), we get a palindrome (233145541332).

It can be divided in two parts, 21303 and 3211020, that added together give a palindrome (3232323).

The spelling of 213033211020 in words is "two hundred thirteen billion, thirty-three million, two hundred eleven thousand, twenty".