211313132322021 has 20 divisors (see below), whose sum is σ = 324196790934412. Its totient is φ = 137067977720448.

The previous prime is 211313132322007. The next prime is 211313132322053. The reversal of 211313132322021 is 120223231313112.

211313132322021 is a `hidden beast` number, since 2 + 1 + 1 + 3 + 1 + 313 + 2 + 322 + 0 + 21 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 100857530556225 + 110455601765796 = 10042785^2 + 10509786^2 .

It is not a de Polignac number, because 211313132322021 - 2³⁵ = 211278772583653 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211313132322521) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 35254106500 + ... + 35254112493.

Almost surely, 2^{211313132322021} is an apocalyptic number.

It is an amenable number.

211313132322021 is a deficient number, since it is larger than the sum of its proper divisors (112883658612391).

211313132322021 is an equidigital number, since it uses as much as digits as its factorization.

211313132322021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70508219042 (or 70508219033 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

Adding to 211313132322021 its reverse (120223231313112), we get a palindrome (331536363635133).

The spelling of 211313132322021 in words is "two hundred eleven trillion, three hundred thirteen billion, one hundred thirty-two million, three hundred twenty-two thousand, twenty-one".