43125653021 has 32 divisors (see below), whose sum is σ = 48165359616. Its totient is φ = 38284488000.

The previous prime is 43125652987. The next prime is 43125653027. The reversal of 43125653021 is 12035652134.

It is a happy number.

It is not a de Polignac number, because 43125653021 - 2⁶ = 43125652957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43125653027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 52527791 + ... + 52528611.

It is an arithmetic number, because the mean of its divisors is an integer number (1505167488).

Almost surely, 2^43125653021 is an apocalyptic number.

It is an amenable number.

43125653021 is a deficient number, since it is larger than the sum of its proper divisors (5039706595).

43125653021 is a wasteful number, since it uses less digits than its factorization.

43125653021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1433.

The product of its (nonzero) digits is 21600, while the sum is 32.

The spelling of 43125653021 in words is "forty-three billion, one hundred twenty-five million, six hundred fifty-three thousand, twenty-one".