545313021343031 has 4 divisors (see below), whose sum is σ = 546751841980200. Its totient is φ = 543874200705864.

The previous prime is 545313021343007. The next prime is 545313021343033. The reversal of 545313021343031 is 130343120313545.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 545313021343031 - 2¹⁸ = 545313021080887 is a prime.

It is a super-2 number, since 2×545313021343031² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545313021343033) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 719410318016 + ... + 719410318773.

It is an arithmetic number, because the mean of its divisors is an integer number (136687960495050).

Almost surely, 2^{545313021343031} is an apocalyptic number.

545313021343031 is a deficient number, since it is larger than the sum of its proper divisors (1438820637169).

545313021343031 is a wasteful number, since it uses less digits than its factorization.

545313021343031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1438820637168.

The product of its (nonzero) digits is 194400, while the sum is 38.

Adding to 545313021343031 its reverse (130343120313545), we get a palindrome (675656141656576).

The spelling of 545313021343031 in words is "five hundred forty-five trillion, three hundred thirteen billion, twenty-one million, three hundred forty-three thousand, thirty-one".