212430132243 has 12 divisors (see below), whose sum is σ = 350678313648. Its totient is φ = 121388646960.

The previous prime is 212430132223. The next prime is 212430132251. The reversal of 212430132243 is 342231034212.

212430132243 is a `hidden beast` number, since 2 + 1 + 2 + 430 + 1 + 3 + 224 + 3 = 666.

It is not a de Polignac number, because 212430132243 - 2¹³ = 212430124051 is a prime.

It is a super-2 number, since 2×212430132243² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (212430132223) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1685953368 + ... + 1685953493.

It is an arithmetic number, because the mean of its divisors is an integer number (29223192804).

Almost surely, 2^212430132243 is an apocalyptic number.

212430132243 is a deficient number, since it is larger than the sum of its proper divisors (138248181405).

212430132243 is a wasteful number, since it uses less digits than its factorization.

212430132243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3371906874 (or 3371906871 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 212430132243 its reverse (342231034212), we get a palindrome (554661166455).

The spelling of 212430132243 in words is "two hundred twelve billion, four hundred thirty million, one hundred thirty-two thousand, two hundred forty-three".