545332113121 has 2 divisors, whose sum is σ = 545332113122. Its totient is φ = 545332113120.

The previous prime is 545332113119. The next prime is 545332113163. The reversal of 545332113121 is 121311233545.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 329144311521 + 216187801600 = 573711^2 + 464960^2 .

It is a cyclic number.

It is not a de Polignac number, because 545332113121 - 2¹ = 545332113119 is a prime.

It is a super-2 number, since 2×545332113121² (a number of 24 digits) contains 22 as substring.

Together with 545332113119, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (545332113191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272666056560 + 272666056561.

It is an arithmetic number, because the mean of its divisors is an integer number (272666056561).

Almost surely, 2^545332113121 is an apocalyptic number.

It is an amenable number.

545332113121 is a deficient number, since it is larger than the sum of its proper divisors (1).

545332113121 is an equidigital number, since it uses as much as digits as its factorization.

545332113121 is an evil number, because the sum of its binary digits is even.

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

Adding to 545332113121 its reverse (121311233545), we get a palindrome (666643346666).

The spelling of 545332113121 in words is "five hundred forty-five billion, three hundred thirty-two million, one hundred thirteen thousand, one hundred twenty-one".