212440233013 has 8 divisors (see below), whose sum is σ = 212664058200. Its totient is φ = 212216524800.

The previous prime is 212440233007. The next prime is 212440233017. The reversal of 212440233013 is 310332044212.

It can be written as a sum of positive squares in 4 ways, for example, as 199007886609 + 13432346404 = 446103^2 + 115898^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212440233013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212440233017) 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, 3874413 + ... + 3928861.

It is an arithmetic number, because the mean of its divisors is an integer number (26583007275).

Almost surely, 2^212440233013 is an apocalyptic number.

It is an amenable number.

212440233013 is a deficient number, since it is larger than the sum of its proper divisors (223825187).

212440233013 is a wasteful number, since it uses less digits than its factorization.

212440233013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58487.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 212440233013 its reverse (310332044212), we get a palindrome (522772277225).

The spelling of 212440233013 in words is "two hundred twelve billion, four hundred forty million, two hundred thirty-three thousand, thirteen".