211071425123 has 4 divisors (see below), whose sum is σ = 227307688608. Its totient is φ = 194835161640.

The previous prime is 211071425051. The next prime is 211071425129. The reversal of 211071425123 is 321524170112.

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

It is a cyclic number.

It is not a de Polignac number, because 211071425123 - 2³⁰ = 209997683299 is a prime.

It is a super-2 number, since 2×211071425123² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (211071425129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8118131723 + ... + 8118131748.

It is an arithmetic number, because the mean of its divisors is an integer number (56826922152).

Almost surely, 2^211071425123 is an apocalyptic number.

211071425123 is a deficient number, since it is larger than the sum of its proper divisors (16236263485).

211071425123 is a wasteful number, since it uses less digits than its factorization.

211071425123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16236263484.

The product of its (nonzero) digits is 3360, while the sum is 29.

Adding to 211071425123 its reverse (321524170112), we get a palindrome (532595595235).

The spelling of 211071425123 in words is "two hundred eleven billion, seventy-one million, four hundred twenty-five thousand, one hundred twenty-three".