211020232213 has 16 divisors (see below), whose sum is σ = 242961223680. Its totient is φ = 179528698800.

The previous prime is 211020232211. The next prime is 211020232219. The reversal of 211020232213 is 312232020112.

It is a cyclic number.

It is not a de Polignac number, because 211020232213 - 2¹ = 211020232211 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211020232211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4247748 + ... + 4297138.

It is an arithmetic number, because the mean of its divisors is an integer number (15185076480).

Almost surely, 2^211020232213 is an apocalyptic number.

It is an amenable number.

211020232213 is a deficient number, since it is larger than the sum of its proper divisors (31940991467).

211020232213 is a wasteful number, since it uses less digits than its factorization.

211020232213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53928.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 211020232213 its reverse (312232020112), we get a palindrome (523252252325).

The spelling of 211020232213 in words is "two hundred eleven billion, twenty million, two hundred thirty-two thousand, two hundred thirteen".