212623311331 has 8 divisors (see below), whose sum is σ = 221927422464. Its totient is φ = 203324168520.

The previous prime is 212623311311. The next prime is 212623311347. The reversal of 212623311331 is 133113326212.

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

It is not a de Polignac number, because 212623311331 - 2¹⁵ = 212623278563 is a prime.

It is a super-2 number, since 2×212623311331² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 212623311331.

It is not an unprimeable number, because it can be changed into a prime (212623311311) 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, 1154485 + ... + 1325926.

It is an arithmetic number, because the mean of its divisors is an integer number (27740927808).

Almost surely, 2^212623311331 is an apocalyptic number.

212623311331 is a deficient number, since it is larger than the sum of its proper divisors (9304111133).

212623311331 is a wasteful number, since it uses less digits than its factorization.

212623311331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2484161.

The product of its digits is 3888, while the sum is 28.

Adding to 212623311331 its reverse (133113326212), we get a palindrome (345736637543).

The spelling of 212623311331 in words is "two hundred twelve billion, six hundred twenty-three million, three hundred eleven thousand, three hundred thirty-one".