11115620263 has 16 divisors (see below), whose sum is σ = 12422062080. Its totient is φ = 9861112800.

The previous prime is 11115620239. The next prime is 11115620287. The reversal of 11115620263 is 36202651111.

It is an interprime number because it is at equal distance from previous prime (11115620239) and next prime (11115620287).

It is not a de Polignac number, because 11115620263 - 2⁹ = 11115619751 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11115620233) 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 15 ways as a sum of consecutive naturals, for example, 19998 + ... + 150436.

It is an arithmetic number, because the mean of its divisors is an integer number (776378880).

Almost surely, 2^11115620263 is an apocalyptic number.

11115620263 is a deficient number, since it is larger than the sum of its proper divisors (1306441817).

11115620263 is a wasteful number, since it uses less digits than its factorization.

11115620263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130638.

The product of its (nonzero) digits is 2160, while the sum is 28.

The spelling of 11115620263 in words is "eleven billion, one hundred fifteen million, six hundred twenty thousand, two hundred sixty-three".