101111009878903 has 2 divisors, whose sum is σ = 101111009878904. Its totient is φ = 101111009878902.

The previous prime is 101111009878897. The next prime is 101111009878951. The reversal of 101111009878903 is 309878900111101.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 101111009878903 - 2⁹ = 101111009878391 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101111009878993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50555504939451 + 50555504939452.

It is an arithmetic number, because the mean of its divisors is an integer number (50555504939452).

Almost surely, 2^{101111009878903} is an apocalyptic number.

101111009878903 is a deficient number, since it is larger than the sum of its proper divisors (1).

101111009878903 is an equidigital number, since it uses as much as digits as its factorization.

101111009878903 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108864, while the sum is 49.

The spelling of 101111009878903 in words is "one hundred one trillion, one hundred eleven billion, nine million, eight hundred seventy-eight thousand, nine hundred three".