110891555123 has 2 divisors, whose sum is σ = 110891555124. Its totient is φ = 110891555122.

The previous prime is 110891555111. The next prime is 110891555143. The reversal of 110891555123 is 321555198011.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 110891555123 - 2⁶ = 110891555059 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (110891555143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55445777561 + 55445777562.

It is an arithmetic number, because the mean of its divisors is an integer number (55445777562).

Almost surely, 2^110891555123 is an apocalyptic number.

110891555123 is a deficient number, since it is larger than the sum of its proper divisors (1).

110891555123 is an equidigital number, since it uses as much as digits as its factorization.

110891555123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54000, while the sum is 41.

The spelling of 110891555123 in words is "one hundred ten billion, eight hundred ninety-one million, five hundred fifty-five thousand, one hundred twenty-three".