323131054545 has 128 divisors (see below), whose sum is σ = 628534932480. Its totient is φ = 156555141120.

The previous prime is 323131054537. The next prime is 323131054549. The reversal of 323131054545 is 545450131323.

323131054545 is a `hidden beast` number, since 3 + 2 + 3 + 1 + 3 + 105 + 4 + 545 = 666.

It is not a de Polignac number, because 323131054545 - 2³ = 323131054537 is a prime.

It is a super-2 number, since 2×323131054545² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (323131054549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 30807292 + ... + 30817778.

It is an arithmetic number, because the mean of its divisors is an integer number (4910429160).

Almost surely, 2^323131054545 is an apocalyptic number.

It is an amenable number.

323131054545 is a deficient number, since it is larger than the sum of its proper divisors (305403877935).

323131054545 is a wasteful number, since it uses less digits than its factorization.

323131054545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10792 (or 10786 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 36.

Adding to 323131054545 its reverse (545450131323), we get a palindrome (868581185868).

The spelling of 323131054545 in words is "three hundred twenty-three billion, one hundred thirty-one million, fifty-four thousand, five hundred forty-five".