1125680020215 has 16 divisors (see below), whose sum is σ = 1817611778400. Its totient is φ = 594854762112.

The previous prime is 1125680020193. The next prime is 1125680020229. The reversal of 1125680020215 is 5120200865211.

It is not a de Polignac number, because 1125680020215 - 2⁵ = 1125680020183 is a prime.

It is a super-2 number, since 2×1125680020215² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 344243020 + ... + 344246289.

It is an arithmetic number, because the mean of its divisors is an integer number (113600736150).

Almost surely, 2^{1125680020215} is an apocalyptic number.

1125680020215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1125680020215 is a deficient number, since it is larger than the sum of its proper divisors (691931758185).

1125680020215 is a wasteful number, since it uses less digits than its factorization.

1125680020215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 688489426.

The product of its (nonzero) digits is 9600, while the sum is 33.

Adding to 1125680020215 its reverse (5120200865211), we get a palindrome (6245880885426).

The spelling of 1125680020215 in words is "one trillion, one hundred twenty-five billion, six hundred eighty million, twenty thousand, two hundred fifteen".