110987120857 has 2 divisors, whose sum is σ = 110987120858. Its totient is φ = 110987120856.

The previous prime is 110987120851. The next prime is 110987120861. The reversal of 110987120857 is 758021789011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 72905940121 + 38081180736 = 270011^2 + 195144^2 .

It is an emirp because it is prime and its reverse (758021789011) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 110987120857 - 2⁷ = 110987120729 is a prime.

It is a super-2 number, since 2×110987120857² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 110987120857.

It is not a weakly prime, because it can be changed into another prime (110987120851) 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 as a sum of consecutive naturals, namely, 55493560428 + 55493560429.

It is an arithmetic number, because the mean of its divisors is an integer number (55493560429).

Almost surely, 2^110987120857 is an apocalyptic number.

It is an amenable number.

110987120857 is a deficient number, since it is larger than the sum of its proper divisors (1).

110987120857 is an equidigital number, since it uses as much as digits as its factorization.

110987120857 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 282240, while the sum is 49.

The spelling of 110987120857 in words is "one hundred ten billion, nine hundred eighty-seven million, one hundred twenty thousand, eight hundred fifty-seven".