211020311019 has 16 divisors (see below), whose sum is σ = 327004842240. Its totient is φ = 118539253920.

The previous prime is 211020310993. The next prime is 211020311023. The reversal of 211020311019 is 910113020112.

It is a happy number.

211020311019 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 211020311019 - 2¹² = 211020306923 is a prime.

It is a super-2 number, since 2×211020311019² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 211020310986 and 211020311004.

It is not an unprimeable number, because it can be changed into a prime (211020311119) 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 15 ways as a sum of consecutive naturals, for example, 85156272 + ... + 85158749.

It is an arithmetic number, because the mean of its divisors is an integer number (20437802640).

Almost surely, 2^211020311019 is an apocalyptic number.

211020311019 is a deficient number, since it is larger than the sum of its proper divisors (115984531221).

211020311019 is a wasteful number, since it uses less digits than its factorization.

211020311019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170315090.

The product of its (nonzero) digits is 108, while the sum is 21.

The spelling of 211020311019 in words is "two hundred eleven billion, twenty million, three hundred eleven thousand, nineteen".