345212101212543 has 24 divisors (see below), whose sum is σ = 500431658871456. Its totient is φ = 229314400761600.

The previous prime is 345212101212521. The next prime is 345212101212571.

345212101212543 is a `hidden beast` number, since 3 + 4 + 5 + 2 + 1 + 2 + 101 + 2 + 1 + 2 + 543 = 666.

345212101212543 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 345212101212543 - 2¹⁴ = 345212101196159 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 345212101212498 and 345212101212507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345212102212543) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 70650771 + ... + 75378747.

It is an arithmetic number, because the mean of its divisors is an integer number (20851319119644).

Almost surely, 2^{345212101212543} is an apocalyptic number.

345212101212543 is a deficient number, since it is larger than the sum of its proper divisors (155219557658913).

345212101212543 is a wasteful number, since it uses less digits than its factorization.

345212101212543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4757135 (or 4757132 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

It can be divided in two parts, 34521210 and 1212543, that added together give a palindrome (35733753).

The spelling of 345212101212543 in words is "three hundred forty-five trillion, two hundred twelve billion, one hundred one million, two hundred twelve thousand, five hundred forty-three".