211312545044451 has 32 divisors (see below), whose sum is σ = 286042748844288. Its totient is φ = 138729980188800.

The previous prime is 211312545044431. The next prime is 211312545044527. The reversal of 211312545044451 is 154440545213112.

It is not a de Polignac number, because 211312545044451 - 2¹⁹ = 211312544520163 is a prime.

It is not an unprimeable number, because it can be changed into a prime (211312545044401) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16564432365 + ... + 16564445121.

It is an arithmetic number, because the mean of its divisors is an integer number (8938835901384).

Almost surely, 2^{211312545044451} is an apocalyptic number.

211312545044451 is a deficient number, since it is larger than the sum of its proper divisors (74730203799837).

211312545044451 is a wasteful number, since it uses less digits than its factorization.

211312545044451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31571.

The product of its (nonzero) digits is 384000, while the sum is 42.

The spelling of 211312545044451 in words is "two hundred eleven trillion, three hundred twelve billion, five hundred forty-five million, forty-four thousand, four hundred fifty-one".