211210134345 has 36 divisors (see below), whose sum is σ = 425868601860. Its totient is φ = 96553203264.

The previous prime is 211210134301. The next prime is 211210134403. The reversal of 211210134345 is 543431012112.

211210134345 is a `hidden beast` number, since 2 + 1 + 1 + 210 + 13 + 434 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 32260829769 + 178949304576 = 179613^2 + 423024^2 .

It is not a de Polignac number, because 211210134345 - 2¹⁷ = 211210003273 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 47891250 + ... + 47895659.

It is an arithmetic number, because the mean of its divisors is an integer number (11829683385).

Almost surely, 2^211210134345 is an apocalyptic number.

It is an amenable number.

211210134345 is an abundant number, since it is smaller than the sum of its proper divisors (214658467515).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

211210134345 is a wasteful number, since it uses less digits than its factorization.

211210134345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95786934 (or 95786924 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

Adding to 211210134345 its reverse (543431012112), we get a palindrome (754641146457).

The spelling of 211210134345 in words is "two hundred eleven billion, two hundred ten million, one hundred thirty-four thousand, three hundred forty-five".