211320233131 has 24 divisors (see below), whose sum is σ = 251577169920. Its totient is φ = 176906740752.

The previous prime is 211320233123. The next prime is 211320233141. The reversal of 211320233131 is 131332023112.

It is not a de Polignac number, because 211320233131 - 2³ = 211320233123 is a prime.

It is a super-2 number, since 2×211320233131² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211320233141) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1007356 + ... + 1198918.

It is an arithmetic number, because the mean of its divisors is an integer number (10482382080).

Almost surely, 2^211320233131 is an apocalyptic number.

211320233131 is a deficient number, since it is larger than the sum of its proper divisors (40256936789).

211320233131 is a wasteful number, since it uses less digits than its factorization.

211320233131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192103 (or 192096 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 211320233131 its reverse (131332023112), we get a palindrome (342652256243).

The spelling of 211320233131 in words is "two hundred eleven billion, three hundred twenty million, two hundred thirty-three thousand, one hundred thirty-one".