212303121313 has 16 divisors (see below), whose sum is σ = 218340460800. Its totient is φ = 206318463120.

The previous prime is 212303121311. The next prime is 212303121353. The reversal of 212303121313 is 313121303212.

It is a cyclic number.

It is not a de Polignac number, because 212303121313 - 2¹ = 212303121311 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212303121311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6812898 + ... + 6843988.

It is an arithmetic number, because the mean of its divisors is an integer number (13646278800).

Almost surely, 2^212303121313 is an apocalyptic number.

It is an amenable number.

212303121313 is a deficient number, since it is larger than the sum of its proper divisors (6037339487).

212303121313 is a wasteful number, since it uses less digits than its factorization.

212303121313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31932.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 212303121313 its reverse (313121303212), we get a palindrome (525424424525).

The spelling of 212303121313 in words is "two hundred twelve billion, three hundred three million, one hundred twenty-one thousand, three hundred thirteen".