212134015230345 has 48 divisors (see below), whose sum is σ = 396842461967952. Its totient is φ = 104208666785280.

The previous prime is 212134015230341. The next prime is 212134015230349. The reversal of 212134015230345 is 543032510431212.

212134015230345 is a `hidden beast` number, since 2 + 1 + 2 + 1 + 340 + 1 + 5 + 2 + 303 + 4 + 5 = 666.

212134015230345 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (212134015230341) and next prime (212134015230349).

It can be written as a sum of positive squares in 8 ways, for example, as 65376587765241 + 146757427465104 = 8085579^2 + 12114348^2 .

It is not a de Polignac number, because 212134015230345 - 2² = 212134015230341 is a prime.

It is not an unprimeable number, because it can be changed into a prime (212134015230341) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 393029934 + ... + 393569303.

It is an arithmetic number, because the mean of its divisors is an integer number (8267551290999).

Almost surely, 2^{212134015230345} is an apocalyptic number.

It is an amenable number.

212134015230345 is a deficient number, since it is larger than the sum of its proper divisors (184708446737607).

212134015230345 is a wasteful number, since it uses less digits than its factorization.

212134015230345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 786599722 (or 786599719 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

Adding to 212134015230345 its reverse (543032510431212), we get a palindrome (755166525661557).

The spelling of 212134015230345 in words is "two hundred twelve trillion, one hundred thirty-four billion, fifteen million, two hundred thirty thousand, three hundred forty-five".