5110115101591 has 2 divisors, whose sum is σ = 5110115101592. Its totient is φ = 5110115101590.

The previous prime is 5110115101589. The next prime is 5110115101601. The reversal of 5110115101591 is 1951015110115.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5110115101591 - 2¹ = 5110115101589 is a prime.

It is a super-2 number, since 2×5110115101591² (a number of 26 digits) contains 22 as substring.

Together with 5110115101589, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5110115101291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2555057550795 + 2555057550796.

It is an arithmetic number, because the mean of its divisors is an integer number (2555057550796).

Almost surely, 2^{5110115101591} is an apocalyptic number.

5110115101591 is a deficient number, since it is larger than the sum of its proper divisors (1).

5110115101591 is an equidigital number, since it uses as much as digits as its factorization.

5110115101591 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1125, while the sum is 31.

The spelling of 5110115101591 in words is "five trillion, one hundred ten billion, one hundred fifteen million, one hundred one thousand, five hundred ninety-one".