211320112131 has 36 divisors (see below), whose sum is σ = 312977250768. Its totient is φ = 137391538752.

The previous prime is 211320112121. The next prime is 211320112147. The reversal of 211320112131 is 131211023112.

211320112131 is a `hidden beast` number, since 211 + 320 + 1 + 1 + 2 + 131 = 666.

It is not a de Polignac number, because 211320112131 - 2⁵ = 211320112099 is a prime.

It is a super-2 number, since 2×211320112131² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (211320112121) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 4196901 + ... + 4246953.

Almost surely, 2^211320112131 is an apocalyptic number.

211320112131 is a deficient number, since it is larger than the sum of its proper divisors (101657138637).

211320112131 is a wasteful number, since it uses less digits than its factorization.

211320112131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50332 (or 50276 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 211320112131 its reverse (131211023112), we get a palindrome (342531135243).

The spelling of 211320112131 in words is "two hundred eleven billion, three hundred twenty million, one hundred twelve thousand, one hundred thirty-one".