1111551500113 has 2 divisors, whose sum is σ = 1111551500114. Its totient is φ = 1111551500112.

The previous prime is 1111551500029. The next prime is 1111551500123. The reversal of 1111551500113 is 3110051551111.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1061792167489 + 49759332624 = 1030433^2 + 223068^2 .

It is a cyclic number.

It is not a de Polignac number, because 1111551500113 - 2⁹ = 1111551499601 is a prime.

It is not a weakly prime, because it can be changed into another prime (1111551500123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555775750056 + 555775750057.

It is an arithmetic number, because the mean of its divisors is an integer number (555775750057).

Almost surely, 2^{1111551500113} is an apocalyptic number.

It is an amenable number.

1111551500113 is a deficient number, since it is larger than the sum of its proper divisors (1).

1111551500113 is an equidigital number, since it uses as much as digits as its factorization.

1111551500113 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 375, while the sum is 25.

The spelling of 1111551500113 in words is "one trillion, one hundred eleven billion, five hundred fifty-one million, five hundred thousand, one hundred thirteen".