212013323207 has 4 divisors (see below), whose sum is σ = 242300940816. Its totient is φ = 181725705600.

The previous prime is 212013323147. The next prime is 212013323233. The reversal of 212013323207 is 702323310212.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 212013323207 - 2⁸ = 212013322951 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 (212013323257) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15143808794 + ... + 15143808807.

It is an arithmetic number, because the mean of its divisors is an integer number (60575235204).

Almost surely, 2^212013323207 is an apocalyptic number.

212013323207 is a deficient number, since it is larger than the sum of its proper divisors (30287617609).

212013323207 is an equidigital number, since it uses as much as digits as its factorization.

212013323207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30287617608.

The product of its (nonzero) digits is 3024, while the sum is 26.

Adding to 212013323207 its reverse (702323310212), we get a palindrome (914336633419).

The spelling of 212013323207 in words is "two hundred twelve billion, thirteen million, three hundred twenty-three thousand, two hundred seven".