212333031331 has 8 divisors (see below), whose sum is σ = 214570070960. Its totient is φ = 210096972288.

The previous prime is 212333031311. The next prime is 212333031359. The reversal of 212333031331 is 133130333212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 212333031331 - 2¹⁹ = 212332507043 is a prime.

It is a super-2 number, since 2×212333031331² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212333031296 and 212333031305.

It is not an unprimeable number, because it can be changed into a prime (212333031311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 194335 + ... + 680023.

It is an arithmetic number, because the mean of its divisors is an integer number (26821258870).

Almost surely, 2^212333031331 is an apocalyptic number.

212333031331 is a deficient number, since it is larger than the sum of its proper divisors (2237039629).

212333031331 is an equidigital number, since it uses as much as digits as its factorization.

212333031331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 490293.

The product of its (nonzero) digits is 2916, while the sum is 25.

Adding to 212333031331 its reverse (133130333212), we get a palindrome (345463364543).

The spelling of 212333031331 in words is "two hundred twelve billion, three hundred thirty-three million, thirty-one thousand, three hundred thirty-one".