211003023021 has 16 divisors (see below), whose sum is σ = 329005822464. Its totient is φ = 117769128624.

The previous prime is 211003022929. The next prime is 211003023029. The reversal of 211003023021 is 120320300112.

It is not a de Polignac number, because 211003023021 - 2¹¹ = 211003020973 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211003023029) 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 15 ways as a sum of consecutive naturals, for example, 116833551 + ... + 116835356.

It is an arithmetic number, because the mean of its divisors is an integer number (20562863904).

Almost surely, 2^211003023021 is an apocalyptic number.

211003023021 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

211003023021 is a deficient number, since it is larger than the sum of its proper divisors (118002799443).

211003023021 is a wasteful number, since it uses less digits than its factorization.

211003023021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233668960.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 211003023021 its reverse (120320300112), we get a palindrome (331323323133).

The spelling of 211003023021 in words is "two hundred eleven billion, three million, twenty-three thousand, twenty-one".