11820963125 has 10 divisors (see below), whose sum is σ = 14771476302. Its totient is φ = 9456770000.

The previous prime is 11820963101. The next prime is 11820963131. The reversal of 11820963125 is 52136902811.

It is a happy number.

It can be written as a sum of positive squares in 5 ways, for example, as 5675814244 + 6145148881 = 75338^2 + 78391^2 .

It is not a de Polignac number, because 11820963125 - 2⁶ = 11820963061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 9456146 + ... + 9457395.

Almost surely, 2^11820963125 is an apocalyptic number.

It is an amenable number.

11820963125 is a deficient number, since it is larger than the sum of its proper divisors (2950513177).

11820963125 is an frugal number, since it uses more digits than its factorization.

11820963125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18913561 (or 18913546 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 38.

The spelling of 11820963125 in words is "eleven billion, eight hundred twenty million, nine hundred sixty-three thousand, one hundred twenty-five".