211320232141 has 4 divisors (see below), whose sum is σ = 211321481500. Its totient is φ = 211318982784.

The previous prime is 211320232127. The next prime is 211320232157. The reversal of 211320232141 is 141232023112.

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

It can be written as a sum of positive squares in 2 ways, for example, as 140801305225 + 70518926916 = 375235^2 + 265554^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-211320232141 is a prime.

It is a super-2 number, since 2×211320232141² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211320232121) 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, 322116 + ... + 725533.

It is an arithmetic number, because the mean of its divisors is an integer number (52830370375).

Almost surely, 2^211320232141 is an apocalyptic number.

It is an amenable number.

211320232141 is a deficient number, since it is larger than the sum of its proper divisors (1249359).

211320232141 is a wasteful number, since it uses less digits than its factorization.

211320232141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1249358.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 211320232141 its reverse (141232023112), we get a palindrome (352552255253).

The spelling of 211320232141 in words is "two hundred eleven billion, three hundred twenty million, two hundred thirty-two thousand, one hundred forty-one".