212323333131 has 128 divisors (see below), whose sum is σ = 399526041600. Its totient is φ = 108441607680.

The previous prime is 212323333129. The next prime is 212323333147. The reversal of 212323333131 is 131333323212.

212323333131 is a `hidden beast` number, since 2 + 1 + 2 + 323 + 3 + 331 + 3 + 1 = 666.

It is not a de Polignac number, because 212323333131 - 2¹ = 212323333129 is a prime.

It is a super-2 number, since 2×212323333131² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 212323333095 and 212323333104.

It is not an unprimeable number, because it can be changed into a prime (212323333171) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 19176265 + ... + 19187333.

It is an arithmetic number, because the mean of its divisors is an integer number (3121297200).

Almost surely, 2^212323333131 is an apocalyptic number.

212323333131 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

212323333131 is a deficient number, since it is larger than the sum of its proper divisors (187202708469).

212323333131 is a wasteful number, since it uses less digits than its factorization.

212323333131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11346 (or 11340 counting only the distinct ones).

The product of its digits is 5832, while the sum is 27.

Adding to 212323333131 its reverse (131333323212), we get a palindrome (343656656343).

The spelling of 212323333131 in words is "two hundred twelve billion, three hundred twenty-three million, three hundred thirty-three thousand, one hundred thirty-one".