545332121311 has 4 divisors (see below), whose sum is σ = 545333672800. Its totient is φ = 545330569824.

The previous prime is 545332121291. The next prime is 545332121317. The reversal of 545332121311 is 113121233545.

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 545332121311 - 2¹¹ = 545332119263 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545332121317) 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, 31495 + ... + 1044823.

It is an arithmetic number, because the mean of its divisors is an integer number (136333418200).

Almost surely, 2^545332121311 is an apocalyptic number.

545332121311 is a deficient number, since it is larger than the sum of its proper divisors (1551489).

545332121311 is a wasteful number, since it uses less digits than its factorization.

545332121311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1551488.

The product of its digits is 10800, while the sum is 31.

Adding to 545332121311 its reverse (113121233545), we get a palindrome (658453354856).

The spelling of 545332121311 in words is "five hundred forty-five billion, three hundred thirty-two million, one hundred twenty-one thousand, three hundred eleven".