211113521440051 has 16 divisors (see below), whose sum is σ = 224580613289760. Its totient is φ = 197883206599680.

The previous prime is 211113521440021. The next prime is 211113521440057. The reversal of 211113521440051 is 150044125311112.

It is a cyclic number.

It is not a de Polignac number, because 211113521440051 - 2⁷ = 211113521439923 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 211113521439995 and 211113521440022.

It is not an unprimeable number, because it can be changed into a prime (211113521440057) 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, 10169896 + ... + 22927141.

It is an arithmetic number, because the mean of its divisors is an integer number (14036288330610).

Almost surely, 2^{211113521440051} is an apocalyptic number.

211113521440051 is a deficient number, since it is larger than the sum of its proper divisors (13467091849709).

211113521440051 is a wasteful number, since it uses less digits than its factorization.

211113521440051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33100614.

The product of its (nonzero) digits is 4800, while the sum is 31.

Adding to 211113521440051 its reverse (150044125311112), we get a palindrome (361157646751163).

The spelling of 211113521440051 in words is "two hundred eleven trillion, one hundred thirteen billion, five hundred twenty-one million, four hundred forty thousand, fifty-one".