45031131342421 has 16 divisors (see below), whose sum is σ = 51566412602880. Its totient is φ = 38521425720960.

The previous prime is 45031131342419. The next prime is 45031131342437. The reversal of 45031131342421 is 12424313113054.

It is not a de Polignac number, because 45031131342421 - 2¹ = 45031131342419 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45031131342451) 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, 54576340 + ... + 55395298.

It is an arithmetic number, because the mean of its divisors is an integer number (3222900787680).

Almost surely, 2^{45031131342421} is an apocalyptic number.

It is an amenable number.

45031131342421 is a deficient number, since it is larger than the sum of its proper divisors (6535281260459).

45031131342421 is a wasteful number, since it uses less digits than its factorization.

45031131342421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 834564.

The product of its (nonzero) digits is 34560, while the sum is 34.

Adding to 45031131342421 its reverse (12424313113054), we get a palindrome (57455444455475).

The spelling of 45031131342421 in words is "forty-five trillion, thirty-one billion, one hundred thirty-one million, three hundred forty-two thousand, four hundred twenty-one".