211010320131021 has 48 divisors (see below), whose sum is σ = 336802364585856. Its totient is φ = 126623621634048.

The previous prime is 211010320130959. The next prime is 211010320131047. The reversal of 211010320131021 is 120131023010112.

211010320131021 is a `hidden beast` number, since 2 + 1 + 1 + 0 + 10 + 320 + 1 + 310 + 21 = 666.

It is not a de Polignac number, because 211010320131021 - 2²⁵ = 211010286576589 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 211010320130985 and 211010320131003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211010320931021) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 19657566 + ... + 28433088.

It is an arithmetic number, because the mean of its divisors is an integer number (7016715928872).

Almost surely, 2^{211010320131021} is an apocalyptic number.

It is an amenable number.

211010320131021 is a deficient number, since it is larger than the sum of its proper divisors (125792044454835).

211010320131021 is a wasteful number, since it uses less digits than its factorization.

211010320131021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8782402 (or 8782399 counting only the distinct ones).

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

Adding to 211010320131021 its reverse (120131023010112), we get a palindrome (331141343141133).

The spelling of 211010320131021 in words is "two hundred eleven trillion, ten billion, three hundred twenty million, one hundred thirty-one thousand, twenty-one".