211421023331 has 8 divisors (see below), whose sum is σ = 241648108800. Its totient is φ = 181199958408.

The previous prime is 211421023321. The next prime is 211421023343. The reversal of 211421023331 is 133320124112.

211421023331 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 211421023331 - 2⁶ = 211421023267 is a prime.

It is a super-2 number, since 2×211421023331² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 211421023297 and 211421023306.

It is not an unprimeable number, because it can be changed into a prime (211421023321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1429631 + ... + 1570568.

It is an arithmetic number, because the mean of its divisors is an integer number (30206013600).

Almost surely, 2^211421023331 is an apocalyptic number.

211421023331 is a deficient number, since it is larger than the sum of its proper divisors (30227085469).

211421023331 is a wasteful number, since it uses less digits than its factorization.

211421023331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3010273.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 211421023331 its reverse (133320124112), we get a palindrome (344741147443).

The spelling of 211421023331 in words is "two hundred eleven billion, four hundred twenty-one million, twenty-three thousand, three hundred thirty-one".