45031123021320 has 128 divisors (see below), whose sum is σ = 150120204422400. Its totient is φ = 12006982591488.

The previous prime is 45031123021193. The next prime is 45031123021321. The reversal of 45031123021320 is 2312032113054.

45031123021320 is a `hidden beast` number, since 4 + 5 + 0 + 31 + 1 + 2 + 302 + 1 + 320 = 666.

It is a super-2 number, since 2×45031123021320² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (45031123021321) 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 31 ways as a sum of consecutive naturals, for example, 7586277 + ... + 12149643.

It is an arithmetic number, because the mean of its divisors is an integer number (1172814097050).

Almost surely, 2^{45031123021320} is an apocalyptic number.

45031123021320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

45031123021320 is an abundant number, since it is smaller than the sum of its proper divisors (105089081401080).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

45031123021320 is a wasteful number, since it uses less digits than its factorization.

45031123021320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4572524 (or 4572514 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

Adding to 45031123021320 its reverse (2312032113054), we get a palindrome (47343155134374).

The spelling of 45031123021320 in words is "forty-five trillion, thirty-one billion, one hundred twenty-three million, twenty-one thousand, three hundred twenty".