211155041505134 has 4 divisors (see below), whose sum is σ = 316732562257704. Its totient is φ = 105577520752566.

The previous prime is 211155041505103. The next prime is 211155041505143. The reversal of 211155041505134 is 431505140551112.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×211155041505134² (a number of 29 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52788760376282 + ... + 52788760376285.

It is an arithmetic number, because the mean of its divisors is an integer number (79183140564426).

Almost surely, 2^{211155041505134} is an apocalyptic number.

211155041505134 is a deficient number, since it is larger than the sum of its proper divisors (105577520752570).

211155041505134 is a wasteful number, since it uses less digits than its factorization.

211155041505134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105577520752569.

The product of its (nonzero) digits is 60000, while the sum is 38.

The spelling of 211155041505134 in words is "two hundred eleven trillion, one hundred fifty-five billion, forty-one million, five hundred five thousand, one hundred thirty-four".