43213240152505 has 32 divisors (see below), whose sum is σ = 52808338800000. Its totient is φ = 33937289892864.

The previous prime is 43213240152491. The next prime is 43213240152661. The reversal of 43213240152505 is 50525104231234.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43213240152505 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 686666881 + ... + 686729809.

It is an arithmetic number, because the mean of its divisors is an integer number (1650260587500).

Almost surely, 2^{43213240152505} is an apocalyptic number.

It is an amenable number.

43213240152505 is a deficient number, since it is larger than the sum of its proper divisors (9595098647495).

43213240152505 is a wasteful number, since it uses less digits than its factorization.

43213240152505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66201.

The product of its (nonzero) digits is 144000, while the sum is 37.

Adding to 43213240152505 its reverse (50525104231234), we get a palindrome (93738344383739).

The spelling of 43213240152505 in words is "forty-three trillion, two hundred thirteen billion, two hundred forty million, one hundred fifty-two thousand, five hundred five".