130121500045 has 48 divisors (see below), whose sum is σ = 168867973008. Its totient is φ = 96209141760.

The previous prime is 130121500037. The next prime is 130121500081. The reversal of 130121500045 is 540005121031.

It is a happy number.

It can be written as a sum of positive squares in 24 ways, for example, as 116212128201 + 13909371844 = 340899^2 + 117938^2 .

It is not a de Polignac number, because 130121500045 - 2³ = 130121500037 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 130121499989 and 130121500025.

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 106919277 + ... + 106920493.

It is an arithmetic number, because the mean of its divisors is an integer number (3518082771).

Almost surely, 2^130121500045 is an apocalyptic number.

It is an amenable number.

130121500045 is a deficient number, since it is larger than the sum of its proper divisors (38746472963).

130121500045 is a wasteful number, since it uses less digits than its factorization.

130121500045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2530 (or 2513 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 22.

Adding to 130121500045 its reverse (540005121031), we get a palindrome (670126621076).

The spelling of 130121500045 in words is "one hundred thirty billion, one hundred twenty-one million, five hundred thousand, forty-five".