212320120331 has 16 divisors (see below), whose sum is σ = 250950192768. Its totient is φ = 177439516800.

The previous prime is 212320120301. The next prime is 212320120333. The reversal of 212320120331 is 133021023212.

It is a cyclic number.

It is not a de Polignac number, because 212320120331 - 2¹⁰ = 212320119307 is a prime.

It is a super-2 number, since 2×212320120331² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (212320120333) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13194305 + ... + 13210386.

It is an arithmetic number, because the mean of its divisors is an integer number (15684387048).

Almost surely, 2^212320120331 is an apocalyptic number.

212320120331 is a deficient number, since it is larger than the sum of its proper divisors (38630072437).

212320120331 is a wasteful number, since it uses less digits than its factorization.

212320120331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26404762.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 212320120331 its reverse (133021023212), we get a palindrome (345341143543).

The spelling of 212320120331 in words is "two hundred twelve billion, three hundred twenty million, one hundred twenty thousand, three hundred thirty-one".