11110131994609 has 2 divisors, whose sum is σ = 11110131994610. Its totient is φ = 11110131994608.

The previous prime is 11110131994603. The next prime is 11110131994651. The reversal of 11110131994609 is 90649913101111.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5838988960000 + 5271143034609 = 2416400^2 + 2295897^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11110131994609 is a prime.

It is not a weakly prime, because it can be changed into another prime (11110131994603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5555065997304 + 5555065997305.

It is an arithmetic number, because the mean of its divisors is an integer number (5555065997305).

Almost surely, 2^{11110131994609} is an apocalyptic number.

It is an amenable number.

11110131994609 is a deficient number, since it is larger than the sum of its proper divisors (1).

11110131994609 is an equidigital number, since it uses as much as digits as its factorization.

11110131994609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 52488, while the sum is 46.

The spelling of 11110131994609 in words is "eleven trillion, one hundred ten billion, one hundred thirty-one million, nine hundred ninety-four thousand, six hundred nine".