11120031123991 has 2 divisors, whose sum is σ = 11120031123992. Its totient is φ = 11120031123990.

The previous prime is 11120031123953. The next prime is 11120031124021. The reversal of 11120031123991 is 19932113002111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11120031123991 - 2³³ = 11111441189399 is a prime.

It is a super-3 number, since 3×11120031123991³ (a number of 40 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11120031123391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5560015561995 + 5560015561996.

It is an arithmetic number, because the mean of its divisors is an integer number (5560015561996).

Almost surely, 2^{11120031123991} is an apocalyptic number.

11120031123991 is a deficient number, since it is larger than the sum of its proper divisors (1).

11120031123991 is an equidigital number, since it uses as much as digits as its factorization.

11120031123991 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2916, while the sum is 34.

The spelling of 11120031123991 in words is "eleven trillion, one hundred twenty billion, thirty-one million, one hundred twenty-three thousand, nine hundred ninety-one".