45031302543021 has 16 divisors (see below), whose sum is σ = 60300553602240. Its totient is φ = 29891734970240.

The previous prime is 45031302543011. The next prime is 45031302543067. The reversal of 45031302543021 is 12034520313054.

It is a cyclic number.

It is not a de Polignac number, because 45031302543021 - 2¹⁵ = 45031302510253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45031302543011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33725550 + ... + 35035343.

It is an arithmetic number, because the mean of its divisors is an integer number (3768784600140).

Almost surely, 2^{45031302543021} is an apocalyptic number.

It is an amenable number.

45031302543021 is a deficient number, since it is larger than the sum of its proper divisors (15269251059219).

45031302543021 is a wasteful number, since it uses less digits than its factorization.

45031302543021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68761836.

The product of its (nonzero) digits is 43200, while the sum is 33.

Adding to 45031302543021 its reverse (12034520313054), we get a palindrome (57065822856075).

The spelling of 45031302543021 in words is "forty-five trillion, thirty-one billion, three hundred two million, five hundred forty-three thousand, twenty-one".