212333313031 has 12 divisors (see below), whose sum is σ = 248635746480. Its totient is φ = 180794678400.

The previous prime is 212333313007. The next prime is 212333313061. The reversal of 212333313031 is 130313333212.

It is not a de Polignac number, because 212333313031 - 2¹¹ = 212333310983 is a prime.

It is a super-2 number, since 2×212333313031² (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 = 212333312987 and 212333313005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212333313001) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14341386 + ... + 14356183.

It is an arithmetic number, because the mean of its divisors is an integer number (20719645540).

Almost surely, 2^212333313031 is an apocalyptic number.

212333313031 is a deficient number, since it is larger than the sum of its proper divisors (36302433449).

212333313031 is a wasteful number, since it uses less digits than its factorization.

212333313031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28697734 (or 28697727 counting only the distinct ones).

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

Adding to 212333313031 its reverse (130313333212), we get a palindrome (342646646243).

The spelling of 212333313031 in words is "two hundred twelve billion, three hundred thirty-three million, three hundred thirteen thousand, thirty-one".