40212000243 has 24 divisors (see below), whose sum is σ = 61524223488. Its totient is φ = 25221411072.

The previous prime is 40212000223. The next prime is 40212000347. The reversal of 40212000243 is 34200021204.

40212000243 is a `hidden beast` number, since 402 + 1 + 20 + 0 + 0 + 243 = 666.

It is not a de Polignac number, because 40212000243 - 2⁹ = 40211999731 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40212000223) 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, 362205 + ... + 460017.

It is an arithmetic number, because the mean of its divisors is an integer number (2563509312).

Almost surely, 2^40212000243 is an apocalyptic number.

40212000243 is a deficient number, since it is larger than the sum of its proper divisors (21312223245).

40212000243 is a wasteful number, since it uses less digits than its factorization.

40212000243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100523 (or 100520 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 40212000243 its reverse (34200021204), we get a palindrome (74412021447).

The spelling of 40212000243 in words is "forty billion, two hundred twelve million, two hundred forty-three", and thus it is an aban number.